Remove and reorder bank counts

Why was this an enum in the first place, anyways?

include/linkdefs.h

@@ -15,16 +15,14 @@
 #define RGBDS_OBJECT_VERSION_STRING "RGB%1hhu"
 #define RGBDS_OBJECT_VERSION_NUMBER (uint8_t)6
 
-enum eBankCount {
-	BANK_COUNT_ROM0  = 1,
-	BANK_COUNT_ROMX  = 511,
-	BANK_COUNT_WRAM0 = 1,
-	BANK_COUNT_WRAMX = 7,
-	BANK_COUNT_VRAM  = 2,
-	BANK_COUNT_OAM   = 1,
-	BANK_COUNT_HRAM  = 1,
-	BANK_COUNT_SRAM  = 16
-};
+#define BANK_COUNT_ROM0  1
+#define BANK_COUNT_ROMX  511
+#define BANK_COUNT_VRAM  2
+#define BANK_COUNT_SRAM  16
+#define BANK_COUNT_WRAM0 1
+#define BANK_COUNT_WRAMX 7
+#define BANK_COUNT_OAM   1
+#define BANK_COUNT_HRAM  1
 
 enum eBankGBCount {
 	BANK_MIN_ROM0  = 0,