cfg80211: fix parsing when db.txt ends on a rule

If genregdb.awk assumes the file will end with an
extra empty line or a comment line. This is could
not be true so just address this.

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Acked-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/wireless/genregdb.awk b/net/wireless/genregdb.awk
index 42cd3fd..9a8217d 100644
--- a/net/wireless/genregdb.awk
+++ b/net/wireless/genregdb.awk
@@ -143,6 +143,8 @@
 }
 
 END {
+	if (active)
+		print_tail_country()
 	print regdb "};"
 	print ""
 	print "int reg_regdb_size = ARRAY_SIZE(reg_regdb);"