Update UsageProgressBarPref layout

 screenshot: https://screenshot.googleplex.com/9869pj4zNcqXWE6.png

Bug: 187770039
Bug: 187769839
Test: atest UsageProgressBarPreferenceTest
Change-Id: I31983d72cfe705c2328bcadaf4d048e2a4645b0b
1 file changed