Fix touch feedback and areas for status bar date & time actions

Occupy the entire height for 48dp touch targets and better touch
background appearance. Remove the redundant background and click action
from the containing layout.

Change-Id: If343e6eb429a7fef38a23c1c9a46c75a95e50ed6
Merge "Fix touch feedback and areas for status bar date & time actions" into cm-11.0