Fix the logic of getting aaudio MMAP policy from collection of policy info.

When the HAL reports mmap policy per device type, the framework will set
the aaudio policy according to the values of the reported policies.
1. Uses AUTO if any of the policy is AUTO or ALWAYS
2. Uses NEVER if all of the policies are NEVER or UNSPECIFIED
3. Uses default policy if all of the policies are UNSPECIFIED

Bug: 342652379
Test: dump aaudio service
FLAG: EXEMPT bugfix
Change-Id: I93bae470e6d9fbdb6eca24108f3f33cb1499824e