Fix navbar editor for RTL layouts.

Remove navigation bar layout XML override which wasn't needed anyway, as the views in mid_navigation_bar are already reordered based on the layout direction anyway.
SystemUI: fix RecentPanel position in landscape mode.

In landscape mdoe we forcing ltr layout direction. This cause call to resolvePadding too late and discards paddings computed by fitSystemWindows. To workaround this we can catch onRtlPropertiesChanged and force executuin of fitSystemWindows one more time. To fix scroll issue after padding will be setted we calling scrollTo with correct position.
Merge branch 'kk-ras-mr1' of https://github.com/rascarlo/android_frameworks_base into kk