Convert libstagefright to Android.bp

See build/soong/README.md for more information

Test: builds
Change-Id: I74cfc651d07cbbaddeae7c4da9da6f2527aee691
diff --git a/media/libmedia/Android.bp b/media/libmedia/Android.bp
index 660fe01..e9b99b4 100644
--- a/media/libmedia/Android.bp
+++ b/media/libmedia/Android.bp
@@ -115,6 +115,8 @@
 
     export_shared_lib_headers: [
         "libbinder",
+        "libicuuc",
+        "libicui18n",
         "libsonivox",
         "libmediadrm",
         "android.hidl.token@1.0-utils",