fixed quantum.c change

quantum/quantum.c

@@ -1087,7 +1087,7 @@ void matrix_scan_quantum() {
 #if (defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) \
   || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__) \
   || defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__)) \
-  && (BACKLIGHT_PIN == B5 || BACKLIGHT_PIN == B6 || BACKLIGHT_PIN == D0)
+  && (BACKLIGHT_PIN == B5 || BACKLIGHT_PIN == B6 || BACKLIGHT_PIN == B7)
   #define HARDWARE_PWM
   #define ICRx            ICR1
   #define TCCRxA          TCCR1A