Add rpi1 platform definitions with notable speed up on 8bit sega systems! corrected rpi2 platform definitions identation.
Add rpi1 platform definitions with notable speed up on 8bit sega systems! corrected rpi2 platform definitions identation.

frangarcj/Genesis-Plus-GX,frangarcj/Genesis-Plus-GX,frangarcj/Genesis-Plus-GX,frangarcj/Genesis-Plus-GX