Fixes Search bar padding when work profile not present.

The full padding was accounted for between the search bar and the
work/personal tabs, but only part of it was there when the tabs
were not shown.

Screenshot: https://screenshot.googleplex.com/8axV9QQ5Qy8MaUn.png

Test: Manually with and without work profile added. In the latter
case, nothing changed. The screenshot reflects the former case.
Fix: 233010483

Change-Id: I11b3c8cc814be48c25cbd9f454c3e122fff96fa0