Populate apex module info

Once early boot has ended, monitor the `apexd.status` property and when
it is activated, query apexd for the modules.

Use this to populate the module information in Keystore and send the
hash of the encoding to KeyMint(s).

Bug: 369375199
Test: VtsAidlKeyMintTargetTest
Flag: android.security.keystore2.attest_modules
Change-Id: I1cc84482c67a642bea6a0e031c1fc85084940e46
diff --git a/keystore2/Android.bp b/keystore2/Android.bp
index cd24cce..4878eb3 100644
--- a/keystore2/Android.bp
+++ b/keystore2/Android.bp
@@ -46,6 +46,7 @@
         "android.security.maintenance-rust",
         "android.security.metrics-rust",
         "android.security.rkp_aidl-rust",
+        "apex_aidl_interface-rust",
         "libaconfig_android_hardware_biometrics_rust",
         "libandroid_security_flags_rust",
         "libanyhow",