ipmid: Use sd_event_loop()

The infinite for-loop over sd_event_run() is effectively the
implementation of sd_event_loop(). sd_event_loop() has the additional
features of terminating correctly and running exit tasks on
sd_event_exit().

Change-Id: Ib01a9b1e43891cbb65cfcab1c7a000d2a13728de
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
1 file changed