Update OWNERS for core/java/android/security

Update the OWNERS file for core/java/android/security:
* Bernardo is no longer reviewing changes to files in this directory
  (confirmed with him via chat).
* This file covers multiple Keystore Java source files, so adding myself
  as an owner.

Bug: 323132824
Test: N/A
Change-Id: I93e25a2794671b03bcb183fb9b472e6f01d34254
diff --git a/core/java/android/security/OWNERS b/core/java/android/security/OWNERS
index 533d459..8bd6c85 100644
--- a/core/java/android/security/OWNERS
+++ b/core/java/android/security/OWNERS
@@ -1,7 +1,7 @@
 # Bug component: 36824
 
 brambonne@google.com
-brufino@google.com
+eranm@google.com
 jeffv@google.com
 
 per-file *NetworkSecurityPolicy.java = file:net/OWNERS