Add new lockscreen app icons
Power Menu: Update the Expanded Desktop drawable - CM

    Also add a proper "off" state.

    Patch Set 2-4: Add to symbols.xml
    Patch Set 5: Remove the useless extra sw600dp-xhdpi drawable

    Change-Id: I111982a4985bba19353dd4f3872e5b21e73dd5f9

    Conflicts:
    	core/res/res/values/symbols.xml