Add remote mono headset address to INTEROP_DISABLE_ROLE_SWITCH BL

Remote connect to DUT as master, if DUT initiate role switch
voice for voip call become distort and remote will disconnect
the ACL and reconnect again.

Change-Id: I916ba18d3804af5917c8d75cf34b1437980ecafb
CRs-Fixed: 2709930
diff --git a/system_bt_ext/conf/interop_database.conf b/system_bt_ext/conf/interop_database.conf
index a47620b..657fa44 100644
--- a/system_bt_ext/conf/interop_database.conf
+++ b/system_bt_ext/conf/interop_database.conf
@@ -210,6 +210,7 @@
 AC:FD:93 = Address_Based
 AA:A8:AC = Address_Based
 B8:D5:0B = Address_Based
+50:1A:A5 = Address_Based
 
 # Disable role switch policy for headsets/car-kits
 # Some car kits initiate a role switch but won't initiate encryption