Fix Simpson keypad T9 and buzzer settings

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

variants/simpson/platformio.ini

@@ -4,6 +4,7 @@ build_unflags = -D PIN_GPS_RX=3 -D PIN_GPS_TX=4 -D ENV_INCLUDE_AHTX0=1 -D ENV_IN
 build_flags = ${Promicro.build_flags}
   -I variants/simpson
   -D SIMPSON
+  -D PIN_BUZZER=0
   -D PIN_GPS_TX=3
   -D PIN_GPS_RX=4
   -D PIN_VIBRATION=1

variants/simpson/variant.h

@@ -42,7 +42,9 @@
 #define PIN_BUTTON1        (6)
 #define BUTTON_PIN         PIN_BUTTON1
 
-#define PIN_BUZZER         (0)
+#ifndef PIN_BUZZER
+  #define PIN_BUZZER       (0)
+#endif
 #ifndef PIN_VIBRATION
   #define PIN_VIBRATION    (1)
 #endif