aaudio: do not allow SRC mismatch if flag off

The purpose of this CL is to skip several attempts at
opening a stream if we know it will fail due to a sample rate mismatch.
This will speed up the open and reduce log spam.

Bug: 219533889
Bug: 318893452
Test: OboeTester, TEST OUTPUT, SRate:16000
Change-Id: I5cba48bda5f60f861d08642be8d77d55ecbef860