Keymint: Use ndk_platform.

Test: N/A
Change-Id: I7e97d9d475a639cfe92c9e6b01689c9ff80d2abc
diff --git a/security/keymint/support/Android.bp b/security/keymint/support/Android.bp
index ddac92f..0cfa798 100644
--- a/security/keymint/support/Android.bp
+++ b/security/keymint/support/Android.bp
@@ -31,7 +31,7 @@
         "include",
     ],
     shared_libs: [
-        "android.hardware.security.keymint-cpp",
+        "android.hardware.security.keymint-unstable-ndk_platform",
         "libbase",
         "libcrypto",
         "libutils",