QuickSettings : Auto-rotate toggle fixes

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

Change-Id: Id3532c10db5f6fc9c2a97ffb809c2c3674f16918
QuickSettings : Dismiss notification panel upon toggle

Automatically dismisses the notification panel after selecting a toggle,
if the option is enabled.

Patchset 2 : Rename to "panel"
             Rename onclick/onlongclick to mOnClick/mOnLongClick

Change-Id: Iaf211db99e45ef464cbc59aa2ee26899f1e44d22