Fix navbar and navring last app toggle

sorry for that....fixed now

cheers

Change-Id: I896dc9040c9397b1a98062262a3a005abba85c75

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/policy/ExtensibleKeyButtonView.java
Fix sorting of navring

lol I do it wrong since we integrated our custom navring. Order logic is not the same
as the order logic in settings. Currently it is from right to left. This change
change it from left to right.

Change-Id: I5dfe3fabcb58726f266f4c5fcdbcf912ca885885