keystore: Allow wifi keystore HAL to lookup wifi blobs

Since wifi keystore HAL service runs inside keystore daemon, allow it to
proxy wifi queries.

Bug: 34603782
Test: Able to connect to wifi passpoint networks.
Change-Id: I005c3850a8dd1b14e3f935d6f68def880061c140
diff --git a/keystore/permissions.cpp b/keystore/permissions.cpp
index 1d3fb8f..92daa1d 100644
--- a/keystore/permissions.cpp
+++ b/keystore/permissions.cpp
@@ -40,6 +40,7 @@
 
 user_euid user_euids[] = {
     {AID_VPN, AID_SYSTEM}, {AID_WIFI, AID_SYSTEM}, {AID_ROOT, AID_SYSTEM},
+    {AID_WIFI, AID_KEYSTORE}, {AID_KEYSTORE, AID_WIFI}
 };
 
 struct user_perm {