Merge "MTP: Skip runtime thumbnail generation for Android Host" into sc-dev am: 144bb33a am: 887de31c am: ea4540eb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15027582

Change-Id: I7b1beca3c0e3b0bbfaed2db9215c37c81b0f98e2