Add error logging in GetRootOfTrust am: a2a1421dd5 am: f591b22b71 am: 936016b0a4

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

Change-Id: Ic500e6ed22ecb08b07f1137951a9dbc23212198e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>