correct button mapping in genesis

Author: Vincent-FK

platform/common/plat_sdl.c

@@ -63,11 +63,11 @@ const struct in_default_bind in_sdl_defbinds[] __attribute__((weak)) = {
 	{ SDLK_d,		    IN_BINDTYPE_PLAYER12, GBTN_DOWN },
 	{ SDLK_l,   	  IN_BINDTYPE_PLAYER12, GBTN_LEFT },
 	{ SDLK_r,  		  IN_BINDTYPE_PLAYER12, GBTN_RIGHT },
-	{ SDLK_y,       IN_BINDTYPE_PLAYER12, GBTN_B },
-	{ SDLK_b,      	IN_BINDTYPE_PLAYER12, GBTN_C },
-	{ SDLK_a,      	IN_BINDTYPE_PLAYER12, GBTN_A },
+	{ SDLK_y,       IN_BINDTYPE_PLAYER12, GBTN_A },
+	{ SDLK_b,      	IN_BINDTYPE_PLAYER12, GBTN_B },
+	{ SDLK_a,      	IN_BINDTYPE_PLAYER12, GBTN_C },
+  { SDLK_m,       IN_BINDTYPE_PLAYER12, GBTN_X },
 	{ SDLK_x,      	IN_BINDTYPE_PLAYER12, GBTN_Y },
-	{ SDLK_m,      	IN_BINDTYPE_PLAYER12, GBTN_X },
 	{ SDLK_n,      	IN_BINDTYPE_PLAYER12, GBTN_Z },
 	{ SDLK_s, 		  IN_BINDTYPE_PLAYER12, GBTN_START },
 	{ SDLK_k,      	IN_BINDTYPE_PLAYER12, GBTN_MODE },