Update KeyMint dependency to v3

Update the dependency on KeyMint to v3. This is a stand-alone change
to avoid merge conflicts internally.

Bug: 244732345
Test: That it compiles
Change-Id: I1009bb902291396ef191e872b697181e98ff7324
diff --git a/Android.bp b/Android.bp
index 55d9c4b..b30851c 100644
--- a/Android.bp
+++ b/Android.bp
@@ -97,7 +97,7 @@
         // AIDL sources from external directories
         ":android.hardware.gnss-V2-java-source",
         ":android.hardware.graphics.common-V3-java-source",
-        ":android.hardware.security.keymint-V2-java-source",
+        ":android.hardware.security.keymint-V3-java-source",
         ":android.hardware.security.secureclock-V1-java-source",
         ":android.hardware.tv.tuner-V1-java-source",
         ":android.security.apc-java-source",