* 12L introduced new API to fetch status bar height based on cutout, to
handle multi-display devices. However, some apps directly read the
height from overlay so the layout is broken for them.
* Since our device is not a multi-display one, set the expected height
in overlay directly as the old way to make these apps look good.
* Reduce status bar height to exactly match the cutout height.
Change-Id: I38fae2cdd20b947998766b35920d28bebcf547cf
