PerformanceControl - add option to force high-end graphics on low memory devices

Credits to Vishal for the great support.

Change-Id: I59ef3f2baa62a9706ca8d80d38434ca4b790ff51
Signed-off-by: MURA Stefano [STELIX PippoX3] <ssspinni@gmail.com>
Merge pull request #3 from STELIX/gh/kk

PerformanceControl - add option to force high-end graphics on low memory...