[automerger skipped] Merge "Fix long characteristic write concurrency bug."...

[automerger skipped] Merge "Fix long characteristic write concurrency bug." am: b143b434 am: 78553f0a -s ours

am skip reason: Merged-In Ib5a182ac28ebf8d7e2abe4a7e0e98b29f6fed290 with SHA-1 a12dde3f is already in history

Original change: https://android-review.googlesource.com/c/platform/system/bt/+/1742995

Change-Id: I04979129f837aaae1d32ca01797384f22c24112c