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: Ibe8beeaf0d1b33968fb782f1f70c17ae9e9bf871
diff --git a/oemlock/aidl/default/Android.bp b/oemlock/aidl/default/Android.bp
index 84136fe..063199a 100644
--- a/oemlock/aidl/default/Android.bp
+++ b/oemlock/aidl/default/Android.bp
@@ -34,7 +34,7 @@
         "OemLock.cpp",
     ],
     shared_libs: [
-        "android.hardware.oemlock-V1-ndk_platform",
+        "android.hardware.oemlock-V1-ndk",
         "libbase",
         "libbinder_ndk",
     ],