Keystore 2.0: Use secure clock service.

Test: CtsVerifier Fingerprint Bound Keys Test
Change-Id: Ia93794f7bcd9f5e26a4121a7bf689440fb1eeed4
diff --git a/keystore2/aidl/Android.bp b/keystore2/aidl/Android.bp
index 3fd0580..fac36e5 100644
--- a/keystore2/aidl/Android.bp
+++ b/keystore2/aidl/Android.bp
@@ -30,7 +30,10 @@
 aidl_interface {
     name: "android.security.authorization",
     srcs: [ "android/security/authorization/*.aidl" ],
-    imports: [ "android.hardware.security.keymint" ],
+    imports: [
+        "android.hardware.security.keymint",
+        "android.hardware.security.secureclock",
+    ],
     unstable: true,
     backend: {
         java: {