BSSMAP RESET: tweak logging

It is not particularly interesting to see a periodic "Sending RESET" to an
unconnected MSC in the logs. De-escalate to LOGL_INFO to make it easier to
configure away these logs.

Sending a RESET ACK is much more interesting, because it indicates that a
connection has been established.

Note that additionally, there will be a log on DMSC LOGL_NOTICE whenever a link
goes up or down, so the RESET logging does not add much crucial information for
operation maintenance, see a_reset_link_up() / a_reset_link_lost().

Change-Id: I86d67d19e20135c4944613c8e99580ef0e22ea8d
1 file changed