Remove ndk_platform backend. Use the ndk backend. am: 43cb9c0dde

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/1778295

Change-Id: I044409eeda834a0242bb9568001959d3e78f5109
diff --git a/stable/Android.bp b/stable/Android.bp
index 5e54e9a..0af6f1c 100644
--- a/stable/Android.bp
+++ b/stable/Android.bp
@@ -67,7 +67,7 @@
     ],
     static_libs: [
         "libgflags",
-        "libupdate_engine_stable-V1-ndk_platform",
+        "libupdate_engine_stable-V1-ndk",
     ],
     srcs: [
         "update_engine_stable_client.cc",