Keyboard: KC60se matrix fixes (#3446)

* Replace KC_NO with ___ in matrices for readability

* Add K49 to LAYOUT matrix

K49 was previously was stated to be padless, but it's actually the right-hand half of a split Backspace.

* Switched positions of K3C and K3D in LAYOUT matrix

When using a split right Shift, K3D is to the left of K3C.

* Insert KC_NO (___) element into bottom row of LAYOUT_60_ansi matrix

Reported by @NimMooMoo on QMK Discord

Right-hand modifiers on bottom row were shifted one key to the right. After debugging, discovered that the "electrical matrix" (the part of the matrix macro that determines which row and column a key uses) was one element short on the last row at K49, causing the rest of the row to be offset by one column.

This commit corrects that issue.

* Added a missing comma in the LAYOUT matrix

keyboards/kc60se/kc60se.h

@@ -18,6 +18,9 @@
 
 #include "quantum.h"
 
+// readability
+#define ___ KC_NO
+
 inline void kc60se_caps_led_on(void)  { DDRB |=  (1<<2); PORTB &= ~(1<<2); }
 inline void kc60se_caps_led_off(void) { DDRB &= ~(1<<2); PORTB &= ~(1<<2); }
 
@@ -25,19 +28,19 @@ inline void kc60se_caps_led_off(void) { DDRB &= ~(1<<2); PORTB &= ~(1<<2); }
  * K2C, K31 and  K3C are keys for ISO
  * This is the row/column wiring, which different from the physical layout.
  */
-// All pads defined in logical layout. The KC_NO in this section are padless.
+// All pads defined in logical layout. The ___ in this section are padless.
 #define LAYOUT( \
-    K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D, \
+    K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D, K49, \
     K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, K1C, K1D, \
     K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, K2C, K2D, \
-    K30, K31, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, K3C, K3D, \
+    K30, K31, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, K3D, K3C, \
     K40, K41, K42,           K45,                     K4A, K4B, K4C, K4D  \
 ) { \
     { K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D }, \
     { K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, K1C, K1D }, \
     { K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, K2C, K2D }, \
     { K30, K31, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, K3C, K3D }, \
-    { K40, K41, K42, KC_NO,KC_NO,K45,KC_NO,KC_NO,KC_NO,KC_NO,K4A,K4B,K4C,K4D }  \
+    { K40, K41, K42, ___, ___, K45, ___, ___, ___, K49, K4A, K4B, K4C, K4D }  \
 }
 
 /* ANSI */
@@ -50,15 +53,15 @@ inline void kc60se_caps_led_off(void) { DDRB &= ~(1<<2); PORTB &= ~(1<<2); }
 ) { \
     { K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D }, \
     { K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, K1C, K1D }, \
-    { K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B,KC_NO,K2D }, \
-    { K30,KC_NO,K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B,KC_NO,K3D }, \
-    { K40, K41, K42, KC_NO,KC_NO,K45, KC_NO,KC_NO,KC_NO,K4A, K4B,K4C,  K4D }  \
+    { K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, ___, K2D }, \
+    { K30, ___, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, ___, K3D }, \
+    { K40, K41, K42, ___, ___, K45, ___, ___, ___, ___, K4A, K4B, K4C, K4D }  \
 }
 
 /* HHKB
- *  K2C & K31 are represented as KC_NO, otherwise this is
+ *  K2C & K31 are represented as ___, otherwise this is
  *  the best representation of the physical layout, (K49 on top right).
- *  The KC_NOs on the space row do not have pads
+ *  The ___s on the space row do not have pads
  */
 #define LAYOUT_60_ansi_split_bs_rshift( \
     K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D, K49, \
@@ -69,9 +72,9 @@ inline void kc60se_caps_led_off(void) { DDRB &= ~(1<<2); PORTB &= ~(1<<2); }
 ) { \
     { K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D }, \
     { K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, K1C, K1D }, \
-    { K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B,KC_NO,K2D }, \
-    { K30,KC_NO,K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, K3C, K3D }, \
-    { K40, K41,K42,KC_NO,KC_NO,K45,KC_NO,KC_NO,KC_NO,K49,K4A,K4B, K4C, K4D }  \
+    { K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, ___, K2D }, \
+    { K30, ___, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, K3C, K3D }, \
+    { K40, K41, K42, ___, ___, K45, ___, ___, ___, K49, K4A, K4B, K4C, K4D }  \
 }