Pass sink metadata to Bluetooth

When just microphone is enabled, i.e. for recording audio, we will
receive just sink metadata update.

Bug: 150670922
Change-Id: I795385d19e64ec5c6bc0a8549beda52da27d25a1
diff --git a/bluetooth/audio/2.2/default/LeAudioAudioProvider.h b/bluetooth/audio/2.2/default/LeAudioAudioProvider.h
index 40c26e0..3de1724 100644
--- a/bluetooth/audio/2.2/default/LeAudioAudioProvider.h
+++ b/bluetooth/audio/2.2/default/LeAudioAudioProvider.h
@@ -45,7 +45,7 @@
                                 const V2_1::AudioConfiguration& audioConfig,
                                 startSession_cb _hidl_cb) override;
 
-  Return<void> startSession_2_2(const sp<V2_0::IBluetoothAudioPort>& hostIf,
+  Return<void> startSession_2_2(const sp<V2_2::IBluetoothAudioPort>& hostIf,
                                 const AudioConfiguration& audioConfig,
                                 startSession_cb _hidl_cb) override;