added default.cfg to extra emu paks

skeleton/EXTRAS/Emus/rg35xx/SUPA.pak/default.cfg

@@ -0,0 +1,14 @@
+-supafaust_pixel_format = rgb565
+
+bind Up = UP
+bind Down = DOWN
+bind Left = LEFT
+bind Right = RIGHT
+bind Select = SELECT
+bind Start = START
+bind Y Button = Y
+bind X Button = X
+bind B Button = B
+bind A Button = A
+bind L Button = L1
+bind R Button = R1