Add media bootclasspath fragment to its sdk

This subsumes the java_sdk_library in the sdk. Also add the service
java_sdk_library as it was missing.

Bug: 188427719
Test: build_mainline_modules.sh
Change-Id: Iff38291b964de4116bcdefe4fd74136c4878c543

apex/media/Android.bp

@@ -27,7 +27,6 @@ package {
 
 sdk {
     name: "media-module-sdk",
-    java_sdk_libs: [
-        "framework-media",
-    ],
+    bootclasspath_fragments: ["com.android.media-bootclasspath-fragment"],
+    java_sdk_libs: ["service-media-s"],
 }