Fix warnings (#484)

Co-authored-by: negativeExponent <negativeExponent@users.noreply.github.com>

src/boards/403.c

@@ -69,7 +69,7 @@ static void M403Power(void) {
 	SetWriteHandler(0x8000, 0xFFFF, M403Write8);
 }
 
-static void StateRestore(void) {
+static void StateRestore(int version) {
 	Sync();
 }
 

src/boards/434.c

@@ -55,7 +55,7 @@ static void Mapper434_Power(void) {
 	SetWriteHandler(0x8000, 0xFFFF, Mapper434_WriteInnerBank);
 }
 
-static void StateRestore(void) {
+static void StateRestore(int version) {
 	Mapper434_Sync();
 }
 

src/boards/437.c

@@ -55,7 +55,7 @@ static void Mapper437_Power(void) {
 	SetWriteHandler(0x8000, 0xFFFF, Mapper437_WriteInnerBank);
 }
 
-static void StateRestore(void) {
+static void StateRestore(int version) {
 	Mapper437_Sync();
 }
 

src/boards/438.c

@@ -55,7 +55,7 @@ static void Mapper438_Power(void) {
 	SetWriteHandler(0x8000, 0xFFFF, Mapper438_WriteLatch);
 }
 
-static void StateRestore(void) {
+static void StateRestore(int version) {
 	Mapper438_Sync();
 }