bullhead/apns: Update apns-full-conf.xml

Change protocol to IPv4v6 for Bell/Virgin canada

Bug:64464229
Test: compile
Change-Id: Ibf8dee016ebfd330818cc49d6205d7264b1cfe98
(cherry picked from commit 7c7af72c052fb39c927e85fa7454b64ae84e23c5)
1 file changed