Pie: Fix alignment of Halo and ClearAll buttons layouts with clock

They were on top of the baseline (Clock).
fix pac alpha flicker

Change-Id: Ia7122f965382b9686d53e4a518093f2bc76709f7
Merge branch 'jb43' of https://github.com/ParanoidAndroid/android_frameworks_base into jb43
Merge branch 'jb43' of git://github.com/ParanoidAndroid/android_frameworks_base into jb43