Saturn: Fix swapped L/R triggers in 3D Control Pad supported games.

MednafenGameCore.mm

@@ -3330,7 +3330,7 @@ - (BOOL)deserializeState:(NSData *)state withError:(NSError **)outError
 const int PCFXMap[] = { 8, 10, 11, 9, 0, 1, 2, 3, 4, 5, 7, 6 };
 const int PSXMap[]  = { 4, 6, 7, 5, 12, 13, 14, 15, 10, 8, 1, 11, 9, 2, 3, 0, 16, 23, 23, 21, 21, 19, 19, 17, 17 };
 const int SSMap[]   = { 4, 5, 6, 7, 10, 8, 9, 2, 1, 0, 15, 3, 11 };
-const int SS3DMap[] = { 0, 1, 2, 3, 6, 4, 5, 10, 9, 8, 18, 20, 7, 12, 15, 15, 13, 13, 18, 20};
+const int SS3DMap[] = { 0, 1, 2, 3, 6, 4, 5, 10, 9, 8, 20, 18, 7, 12, 15, 15, 13, 13, 20, 18};
 const int VBMap[]   = { 9, 8, 7, 6, 4, 13, 12, 5, 3, 2, 0, 1, 10, 11 };
 const int WSMap[]   = { 0, 2, 3, 1, 4, 6, 7, 5, 9, 10, 8, 11 };