iwpan: fix small typo, no functional change

Obviously there was a small typo within
64a53f3

Signed-off-by: Carsten Schoenert <c.schoenert@t-online.de>
Signed-off-by: Alexander Aring <aar@pengutronix.de>

src/info.c

@@ -467,7 +467,7 @@ static int print_phy_handler(struct nl_msg *msg, void *arg)
 				printf("false,true\n");
 				break;
 			default:
-				printf("unkown\n");
+				printf("unknown\n");
 				break;
 			}
 		}