Adjustment to autostart and M226 for QA

Made changed requested by Logan fori testing jigs in production.

- Fixed "auto0.g" autostart which was not working.
- Made it so M226 works on protected pins:
   - There are no longer protected pins
   - However, will only work on pins that are already inputs (like endstops)

Marlin/Conditionals_LulzBot.h

@@ -39,7 +39,7 @@
     #error Must specify model and toolhead. Please see "Configuration_LulzBot.h" for directions.
 #endif
 
-#define LULZBOT_FW_VERSION ".5"
+#define LULZBOT_FW_VERSION ".6"
 
 // Select options based on printer model
 
@@ -162,6 +162,12 @@
 // so long as UBL is disabled.
 #define LULZBOT_G26_BACKWARDS_COMPATIBILITY
 
+// Fix for auto0.g, which is broken
+#define LULZBOT_AUTOSTART_BUGFIX
+
+// Q&A wants to be able to use M226 on endstops switches
+#define LULZBOT_NO_PIN_PROTECTION_ON_M226
+
 // The following should be kept more or less like M999
 #define LULZBOT_G26_RESET_ACTION \
   Running = true; \

Marlin/Marlin_main.cpp

@@ -8802,13 +8802,22 @@ inline void gcode_M226() {
     const int pin_number = parser.value_int(),
               pin_state = parser.intval('S', -1); // required pin state - default is inverted
 
+#if defined(LULZBOT_NO_PIN_PROTECTION_ON_M226)
+    if (WITHIN(pin_state, -1, 1) && pin_number > -1) {
+#else
     if (WITHIN(pin_state, -1, 1) && pin_number > -1 && !pin_is_protected(pin_number)) {
+#endif
 
       int target = LOW;
 
       stepper.synchronize();
 
+#if !defined(LULZBOT_NO_PIN_PROTECTION_ON_M226)
       pinMode(pin_number, INPUT);
+#else
+      // Don't switch pin mode. Since we are disabling protection,
+      // we should only poll pins that already are inputs.
+#endif
       switch (pin_state) {
         case 1:
           target = HIGH;

Marlin/cardreader.cpp

@@ -27,6 +27,7 @@
 #include "language.h"
 
 #include "Marlin.h"
+#include "Configuration.h"
 
 #if ENABLED(SDSUPPORT)
 
@@ -532,8 +533,13 @@ void CardReader::write_command(char *buf) {
 }
 
 void CardReader::checkautostart(bool force) {
+#if defined(LULZBOT_AUTOSTART_BUGFIX)
+  if (!force && (!autostart_stilltocheck || ! ELAPSED(millis(), next_autostart_ms)))
+    return;
+#else
   if (!force && (!autostart_stilltocheck || ELAPSED(millis(), next_autostart_ms)))
     return;
+#endif
 
   autostart_stilltocheck = false;