Convert libmedia_jni to Android.bp

See build/soong/README.md for more information.

Test: m -j checkbuild
Change-Id: I1817c75ee45537ca0d5fc40a035f94a3dfeccc11
diff --git a/core/jni/Android.bp b/core/jni/Android.bp
index bc23b16..b0a2e11 100644
--- a/core/jni/Android.bp
+++ b/core/jni/Android.bp
@@ -277,12 +277,18 @@
     ],
 
     local_include_dirs: ["android/graphics"],
-    export_include_dirs: ["include"],
+    export_include_dirs: [
+        ".",
+        "include",
+    ],
     export_shared_lib_headers: [
         // AndroidRuntime.h depends on nativehelper/jni.h
         "libnativehelper",
 
         // our headers include libnativewindow's public headers
         "libnativewindow",
+
+        // GraphicsJNI.h includes hwui headers
+        "libhwui",
     ],
 }