Correct attribution source for MMAP thread

Ensure that the package name, which is used for listening for appops
below getInputForAttr, is corrected for MMAP threads.

Bug: 268724205
Test: AudioRecordTest
Test: Oboetester MMAP record silenced when backgrounded - 6s
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:f59db5cb1be38abce4c3c4f553090e527a6d4513)
Merged-In: Ia6fc1bff815bbbb2fee8bc1a60569a663a713e4b
Change-Id: Ia6fc1bff815bbbb2fee8bc1a60569a663a713e4b