Remove ndk_platform backend. Use the ndk backend.

The ndk_platform backend will soon be deprecated because the ndk backend
can serve the same purpose. This is to eliminate the confusion about
having two variants (ndk and ndk_platform) for the same ndk backend.

Bug: 161456198
Test: m
Change-Id: Id16039722fd70d4e2e934a0988f13a768ce833ec
diff --git a/media/libmedia/Android.bp b/media/libmedia/Android.bp
index e98d7d8..9c1b563 100644
--- a/media/libmedia/Android.bp
+++ b/media/libmedia/Android.bp
@@ -378,12 +378,12 @@
     ],
 
     static_libs: [
-        "resourcemanager_aidl_interface-ndk_platform",
+        "resourcemanager_aidl_interface-ndk",
         "framework-permission-aidl-cpp",
     ],
 
     export_static_lib_headers: [
-        "resourcemanager_aidl_interface-ndk_platform",
+        "resourcemanager_aidl_interface-ndk",
         "framework-permission-aidl-cpp",
     ],