Enable Rust backend on Keymint, Fingerprint and Biometrics interfaces

This is necessary to implement fingerprint HAL in Rust.

Bug: 366409699
Test: Build pass
Ignore-AOSP-First: Get around auto-merger conflict with main
(cherry picked from https://android-review.googlesource.com/q/commit:eb11ce8129f7f84ce52669a64318de405d0f4431)

Merged-In: I6d925fadb94252cd9d66f93b3085c231ff52fe86
Change-Id: I6d925fadb94252cd9d66f93b3085c231ff52fe86
diff --git a/keymaster/aidl/Android.bp b/keymaster/aidl/Android.bp
index 9f4e5cb..d416d2d 100644
--- a/keymaster/aidl/Android.bp
+++ b/keymaster/aidl/Android.bp
@@ -24,6 +24,9 @@
                 "//apex_available:platform",
             ],
         },
+        rust: {
+            enabled: true,
+        },
     },
     versions_with_info: [
         {