Use defaults to reference current keystore AIDL

The KeyMint HAL will soon be updated for a new version, which will in
turn induce a version bump for the keystore2 AIDL interface. To make
this process easier, add cc_defaults that references the "current"
version, and use this elsewhere. This should hopefully mean that a
future version bump only needs to happen in the defaults.

Test: TreeHugger
Change-Id: I8999de92443fd121a9515dccde8d76094dc93023
diff --git a/keystore/Android.bp b/keystore/Android.bp
index 50d4432..892c5b4 100644
--- a/keystore/Android.bp
+++ b/keystore/Android.bp
@@ -36,7 +36,10 @@
 
 cc_binary {
     name: "keystore_cli_v2",
-    defaults: ["keystore_defaults"],
+    defaults: [
+        "keystore_defaults",
+        "keystore2_use_latest_aidl_ndk_shared",
+    ],
 
     cflags: [
         "-DKEYMASTER_NAME_TAGS",
@@ -48,7 +51,6 @@
     ],
     shared_libs: [
         "android.security.apc-ndk",
-        "android.system.keystore2-V1-ndk",
         "libbinder",
         "libbinder_ndk",
         "libchrome",