volume_id: Adopt to new config style.

Config instructions for util-linux/volume_id are moved into the
source files according to the new config feature.

No code change.

Signed-off-by: Sven-Göran Bergh <sgb@systemasis.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

util-linux/volume_id/unused_lsi_raid.c

@@ -20,6 +20,15 @@
 
 //kbuild:### lib-$(CONFIG_FEATURE_VOLUMEID_LSIRAID) += lsi_raid.o
 
+//config:
+//config:### config FEATURE_VOLUMEID_LSIRAID
+//config:###	bool "lsi raid"
+//config:###	default y
+//config:###	depends on VOLUMEID
+//config:###	help
+//config:###	  TODO
+//config:
+
 #include "volume_id_internal.h"
 
 struct lsi_meta {