Add error logging in GetRootOfTrust am: a2a1421dd5 am: 55cf90f073

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/keymaster/+/18808331

Change-Id: Idddc7ee4fc467c97ba9540f26cf8ca4b12b8c8c1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>