Remove 486mhz GPU option for compatibility (because 2=512, and 3 doesn't exist on most kernels)

Change-Id: Ia7cc2b7b9466494f51a50d533c1d46878e0ad281
Add checkbox to allow NOT overriding colors set by vanir config

Change-Id: Ic96217853ea001283086e537d9089c0075cf7870