Permit MediaRouteButton to select system routes in toggle mode.
Permit MediaRouteButton to select system routes in toggle mode.

Bug 6694917

Change-Id: I82e68aee196c72f349e7638717b727ef3f23e9b5

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base