DO NOT MERGE: Prevent non-system IME from becoming device admin am: f753a3c8

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/23545218



Change-Id: Icc9e0866bcf0a1f41911c697936d5cb31c4f3b78
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>