audio: Pass flags and I/O handle to StreamContext am: b42a69ef68 am: f3121325bc

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2639433

Change-Id: Ie35a0c8d4a1c08fedfce11e6c786e48c521529f3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>