Add 'com.android.media' to apex_available of libhardware_headers

Due to adding a dependency of libmedia_helper on
libhardware_headers

Bug: 278976019
Test: m
Change-Id: I97df31b209630dc7fb6b46a0b0221c0d496e6375
diff --git a/Android.bp b/Android.bp
index 88e0d44..6baab68 100644
--- a/Android.bp
+++ b/Android.bp
@@ -64,6 +64,7 @@
     apex_available: [
         "//apex_available:platform",
         "com.android.btservices",
+        "com.android.media",
         "com.android.media.swcodec",
     ],
     min_sdk_version: "29",