UNIF: Update boards based on last commit

- fixes (if necessary), update and cleanup the following boards that now dont need alternate mappings:
- this is part of migrating unif to be usuable in ines mappers
- boards affected in this commit are:
  SUPERVISION16IN1, GS-2004, GS-2013, UNL-SMB2J, MARIO1-MALEE2, UNL-SA-9602B, UNL-KS106C / RESETNROM-XIN1
  UNL-AC08, NES-NTBROM, BMC-K-3033, BMC-GN-26, BMC-GHOSTBUSTERS63IN1, BMC-830425C-4391T
  BMC-830134C, BMC-891227 / BMC-CTC-12IN1, BMC-JC-016-2, UNL-T4A54A, UNL-8157, BMC-T-262
  (might have forgotten to list some...)

src/boards/gs-2004.c

@@ -29,7 +29,7 @@ static SFORMAT StateRegs[] =
 };
 
 static void Sync(void) {
-	setprg8r(1, 0x6000, 0);
+	setprg8(0x6000, 32);
 	setprg32(0x8000, reg);
 	setchr8(0);
 }
@@ -40,7 +40,7 @@ static DECLFW(BMCGS2004Write) {
 }
 
 static void BMCGS2004Power(void) {
-	reg = ~0;
+	reg = 0x07;
 	Sync();
 	SetReadHandler(0x6000, 0x7FFF, CartBR);
 	SetReadHandler(0x8000, 0xFFFF, CartBR);
@@ -48,7 +48,7 @@ static void BMCGS2004Power(void) {
 }
 
 static void BMCGS2004Reset(void) {
-	reg = ~0;
+	reg = 0x07;
 }
 
 static void StateRestore(int version) {