legacy: add missing option for util-linux' wdctl

In 349c9c7 (package/util-linux: add more tool select options), the
util-linux' wdctl option was renamed, but a entry in the legacy menu was
no added.

Add this now.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Maxim Mikityanskiy <maxtram95@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

Config.in.legacy

@@ -102,6 +102,14 @@ endif
 
 comment "Legacy options removed in 2015.02"
 
+config BR2_PACKAGE_WDCTL
+	bool "util-linux' wdctl option has been renamed"
+	select BR2_LEGACY
+	select BR2_PACKAGE_UTIL_LINUX_WDCTL
+	help
+	  util-linux' wdctl option has been renamed to BR2_PACKAGE_UTIL_LINUX_WDCTL
+	  to be aligned with how the other options are named.
+
 config BR2_PACKAGE_RPM_BZIP2_PAYLOADS
 	bool "rpm's bzip2 payloads option has been removed"
 	select BR2_LEGACY