Revert removing PerformanceControl app from Settings

See also vendor/aokp!

This reverts commit 7b28e34074fce72cfd2a4f5fff06fb8d697136eb.
Ported from CM: running music app on headset connection
Polish translation updated

Change-Id: Id9f48359d71da217e52216348e895b6f41ff3f06
Fixing merge errors

Change-Id: I6cfbbb9109850509089b7da9c1ffdddfbc015247