AAudio: Support front wide channels

When channel masks were added to AAudio, front wide channels were not
yet supported by audio-hals-enum.h. With ag/15193294, we can actually
support 9.1.x configurations.

Bug: 289125033
Test: OboeTester Test Output after increasing FCC_LIMIT
Test: atest AAudioTests
Change-Id: I6f88b74ee5f50b86088c6e1c4cca374cfe85e444