board-shooteru: enable ION support

Based on Lexmaster's and CyanogenMod kernels

Change-Id: I2ee91f139b6a876e6da6db0137824801aa72fe34
Signed-off-by: helicopter88 <johnlemon.lol@gmail.com>
shooter: enable ION support

adapted to shooter from shooteru by Domenico Marino (helicopter88)