Fix ProtoLogViewerConfigReader bug

If we unloaded a viewer config group we would never be able to re-loaded it because we were not clearing the groups from mGroupHashes which we used to check if the group was loaded.

Flag: EXEMPT minor bug fix
Test: atest com.android.internal.protolog.ProtoLogViewerConfigReaderTest
Change-Id: I8e8d1d064212e905c6a0179b4e4cd609a3985945
2 files changed