One libbluetooth_audio_session

libbluetooth_audio_session must be version agnostic, and support both
2.0 and 2.1 bluetooth.audio vendor libraries

Test: compilation
Bug: 150670922
Change-Id: I6a4a10b37201da9a5fb289262530f9d9cd5041ac
diff --git a/bluetooth/audio/utils/Android.bp b/bluetooth/audio/utils/Android.bp
index add822e..35476d2 100644
--- a/bluetooth/audio/utils/Android.bp
+++ b/bluetooth/audio/utils/Android.bp
@@ -4,12 +4,15 @@
     vendor: true,
     srcs: [
         "session/BluetoothAudioSession.cpp",
+        "session/BluetoothAudioSession_2_1.cpp",
         "session/BluetoothAudioSupportedCodecsDB.cpp",
+        "session/BluetoothAudioSupportedCodecsDB_2_1.cpp",
     ],
     export_include_dirs: ["session/"],
     header_libs: ["libhardware_headers"],
     shared_libs: [
         "android.hardware.bluetooth.audio@2.0",
+        "android.hardware.bluetooth.audio@2.1",
         "libbase",
         "libcutils",
         "libfmq",