Merge "Default initializing error_code_ to 0." into sc-dev am: edfd5f7e2d am: 3a299a2e03

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/keymaster/+/15120684

Change-Id: I944b1095044e6d8c011b8c093cb9fa87c334a7f7