Follow config overlay's order of aspect ratio options

Fix flaky UserAspectRatioAppsPageProviderTest by using advanceUntilIdle
to make sure all coroutines are finished before asserting.

Bug: 325911424
Test: atest UserAspectRatioDetailsTest
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:32815ad699448c5c5b1f38df6d2d2a881d4251c1)
Merged-In: I83e9a7f31536c1a006789722b0310f3364d14337
Change-Id: I83e9a7f31536c1a006789722b0310f3364d14337