Switch to using XAPI's event_from instead of event_next
Switch to using XAPI's event_from instead of event_next

Signed-off-by: Robert Breker <bfcd7039ca4b92386f0756a1d5e67ea4ff23cfe0@citrix.com>

robertbreker/xscontainer,robertbreker/xscontainer,xenserver/xscontainer,olivierlambert/xscontainer,xenserver/xscontainer,olivierlambert/xscontainer