iwinfo: update to the latest git HEAD
c1a03e8 nl80211: request split information about frequencies
5638567 nl80211: store info about freq being not available for some bandwidths
ce51cb8 Allow storing more info about each frequency
5c10efa nl80211: support receiving split frequencies
335967c nl80211: improve error handling
ab089dd nl80211: propagate netlink errors to callers
7bba117 nl80211: handle netlink errors in nl80211_wait()
d22c64c iwinfo: add device id for Ubiquiti NanoStation Loco M2
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>