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: I0652f1efe920111d79dd8c2ecd52e55dda54538f
diff --git a/automotive/audiocontrol/aidl/default/Android.bp b/automotive/audiocontrol/aidl/default/Android.bp
index 7694bdf..1439cce 100644
--- a/automotive/audiocontrol/aidl/default/Android.bp
+++ b/automotive/audiocontrol/aidl/default/Android.bp
@@ -29,8 +29,8 @@
     vendor: true,
     shared_libs: [
         "android.hardware.audio.common@7.0-enums",
-        "android.frameworks.automotive.powerpolicy-V1-ndk_platform",
-        "android.hardware.automotive.audiocontrol-V1-ndk_platform",
+        "android.frameworks.automotive.powerpolicy-V1-ndk",
+        "android.hardware.automotive.audiocontrol-V1-ndk",
         "libbase",
         "libbinder_ndk",
         "libcutils",