[media] v4l2-ctrls: use const char * const * for the menu arrays

This prevents checkpatch warnings generated when defining
'static const char *foo[]' arrays. It makes sense to use
const char * const * anyway since the pointers in the array
are indeed const.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h
index cb4057b..ac94a8b 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h
@@ -115,7 +115,7 @@
 		} type_int;
 		struct { /* enumerated control */
 			unsigned int count;       /* enum value count */
-			const char **value_names; /* symbol names */
+			const char * const *value_names; /* symbol names */
 		} type_enum;
 		struct { /* bitmask control */
 			unsigned int valid_bits; /* bits in use */