QuickSettings : Auto-rotate toggle fixes

Use RotationPolicy to avoid unecessary code and stay consistent
with rest of the system.

Change-Id: Id3532c10db5f6fc9c2a97ffb809c2c3674f16918
Status bar brightness control from CM10 (1/2)

Change-Id: Ida526bf19e56d549f7cc75c47466e6953295d888
Missed Settings