Add error logging in GetRootOfTrust am: a2a1421dd5 am: 7081bc6c73

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

Change-Id: Idca5c395e82fdfe8555ae1b14c9fb0aad1f5fa08
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>