Ignore VolumeDialogImplTest class am: 6bd7e33a67

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/25119843

Change-Id: Icdd34ad09bcd930f3f3c78366511db9754aa335a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>