keystore2: Add utils to fetch keys from RKPD

Bug: 261214100
Test: keystore2_test
Change-Id: I87ec83dd700b4e3e24c65ce0650cd5643000a390
diff --git a/keystore2/Android.bp b/keystore2/Android.bp
index 51ce9d1..fa80563 100644
--- a/keystore2/Android.bp
+++ b/keystore2/Android.bp
@@ -41,8 +41,10 @@
         "android.security.maintenance-rust",
         "android.security.metrics-rust",
         "android.security.remoteprovisioning-rust",
+        "android.security.rkp_aidl-rust",
         "libanyhow",
         "libbinder_rs",
+        "libfutures",
         "libkeystore2_aaid-rust",
         "libkeystore2_apc_compat-rust",
         "libkeystore2_crypto_rust",