Upgrade KeyMint version

This is a cherry-pick of a change to internal master to upgrade the
KeyMint version.

The cherry-pick is necessary because the changes to support Curve
25519 will land in AOSP and there are currently merge conflicts for
Android.bp with internal master.

Bug: 194359292
Test: That it compiles.
Merged-In: I95191fd09b138bf3ba1cbb50534fdbdcf36d1596
Change-Id: Ibbd2f1ddd71ad855e26d59f72633c47351320ce6
diff --git a/Android.bp b/Android.bp
index 5bd3329..2ab31f4 100644
--- a/Android.bp
+++ b/Android.bp
@@ -97,7 +97,7 @@
         ":platform-compat-native-aidl",
 
         // AIDL sources from external directories
-        ":android.hardware.security.keymint-V1-java-source",
+        ":android.hardware.security.keymint-V2-java-source",
         ":android.hardware.security.secureclock-V1-java-source",
         ":android.security.apc-java-source",
         ":android.security.authorization-java-source",