Merge "USB MIDI: Don't call openLocked on device unplug" into tm-dev am: 5a5ccbe0 am: 1a79ffbe am: 33ef1860

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18297858



Change-Id: I97fe6794eb6d2ed6564e50374a914c631ca9de14
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>