Start MMC1 in mode 3

src/map/mmc1.c

@@ -91,7 +91,7 @@ static void mmc1_update_prg(mmc1_mapper* map) {
 static void mmc1_reset(nes_mapper* nes_map) {
     mmc1_mapper* map = (mmc1_mapper*)nes_map->data;
     map->reg_shift   = 0b10000;
-    map->reg_control = 0;
+    map->reg_control = 0b01100;
     map->reg_chr_0   = 0;
     map->reg_chr_1   = 0;
     map->reg_prg     = 0;