Enable Rust backend on Keymint, Fingerprint and Biometrics interfaces

This is necessary to implement fingerprint HAL in Rust.

Bug: 366409699
Test: Build pass
Merged-In: I6d925fadb94252cd9d66f93b3085c231ff52fe86
Change-Id: I6d925fadb94252cd9d66f93b3085c231ff52fe86
diff --git a/keymaster/aidl/Android.bp b/keymaster/aidl/Android.bp
index 0f2debd..56997a9 100644
--- a/keymaster/aidl/Android.bp
+++ b/keymaster/aidl/Android.bp
@@ -18,6 +18,9 @@
         java: {
             platform_apis: true,
         },
+        rust: {
+            enabled: true,
+        },
     },
     versions_with_info: [
         {