Centering battery view in shade header

Battery view was shifted up in large screen header because battery height view decreased after ag/24677444 and it wasn't centered. This change is centering it (and statusIcons) vertically in parent.

Change-Id: Ideef40bf46dff67365e0754a948160f1735c5c48
Test: ShadeHeaderScreenshotTest
Fixes: 301240784
1 file changed