Merge "adding matrial next overline text style for subheader" into sc-dev am:...

Merge "adding matrial next overline text style for subheader" into sc-dev am: 47b11902 am: 493adbc7 am: 6cdf9e63

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/DocumentsUI/+/14738081

Change-Id: I35fe542e4dda82b01aa8f4f9c9d228596e8a9051