iw: handle DFS CAC time param

Handle DFS CAC time param for
iw list/info, iw reg get

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/info.c b/info.c
index 001b317..97ff39d 100644
--- a/info.c
+++ b/info.c
@@ -199,6 +199,9 @@
 							printf(" (for %lu sec)", time/1000);
 						}
 						printf("\n");
+						if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME])
+							printf("\t\t\t  DFS CAC time: %u ms\n",
+							       nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]));
 					}
 
 				}