change timer T2427001 to X2427

libosmo-mgcp-client looks up this timer in a caller provided osmo_tdef
definition. So far, all of our libosmo-mgcp-client callers do not configure
such a timer, so that we always use the default timer value.

We have introduced X timers (negative numbers) to indicate Osmocom specific
timers, and reserve T timers for 3GPP specified ones. So now is still a good
chance to move this timer to the Osmocom X realm.

Remove a comment about this timer at an unrelated place. It is still described
at osmo_mgcpc_ep_alloc().

Change-Id: If097f52701fd81f29bcca1d252f4fb4fca8a04f7
1 file changed