iw: print 4ADDR attribute when dumping interface

Print the value of the 4ADDR attribute when dumping the interface
status.

Signed-off-by: Antonio Quartulli <a@unstable.cc>
[print only when enabled]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

Change-Id: Ieaa5de972638e9c0a9b74fe1daf4aa86dba2c7fd
1 file changed