Send the Audio Usage down from AudioPolicyManager

Store audioUsgae in AudioAttributes and send it down to
AudioFlinger::openOutput_l. Then extract audioUsage and store in
SourceMetadata to pass it down to the HAL layer.

Bug: 297875432
Test: Add a fake audio usage in attribute in AudioFlinger::openoutput(), then test by checking the log message. The fake usage does get pass down to the DeviceHalAidl::openOutputStream().
Flag: EXEMPT bugfix
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:f6e304f9c5066ae829a91dcd98bc6045a13a8b30)
Merged-In: Ic9a739f1de50485304187be5c4b603955afabbf8
Change-Id: Ic9a739f1de50485304187be5c4b603955afabbf8
diff --git a/services/audioflinger/IAfPatchPanel.h b/services/audioflinger/IAfPatchPanel.h
index 6110e4c..37dce3a 100644
--- a/services/audioflinger/IAfPatchPanel.h
+++ b/services/audioflinger/IAfPatchPanel.h
@@ -82,7 +82,8 @@
             audio_config_base_t* mixerConfig,
             audio_devices_t deviceType,
             const String8& address,
-            audio_output_flags_t flags) REQUIRES(mutex()) = 0;
+            audio_output_flags_t flags,
+            audio_attributes_t attributes) REQUIRES(mutex()) = 0;
     virtual audio_utils::mutex& mutex() const
             RETURN_CAPABILITY(audio_utils::AudioFlinger_Mutex) = 0;
     virtual const DefaultKeyedVector<audio_module_handle_t, AudioHwDevice*>&