Add REGA Alarm call functionality

app/app.c

@@ -96,8 +96,12 @@ void (*ProcessKeysFunctions[])(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld)
 #endif
 };
 
+#ifdef ENABLE_REGA
+// This is a hack for REGA as I need a special display element only for it with no key
+static_assert(ARRAY_SIZE(ProcessKeysFunctions) == DISPLAY_N_ELEM-1);
+#else
 static_assert(ARRAY_SIZE(ProcessKeysFunctions) == DISPLAY_N_ELEM);
-
+#endif
 
 
 static void CheckForIncoming(void)