kset: convert kernel_subsys to use kset_create

Dynamically create the kset instead of declaring it statically.  We also
rename kernel_subsys to kernel_kset to catch all users of this symbol
with a build error instead of an easy-to-ignore build warning.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/security/inode.c b/security/inode.c
index dfc5978..dbe040a 100644
--- a/security/inode.c
+++ b/security/inode.c
@@ -321,7 +321,7 @@
 {
 	int retval;
 
-	security_kobj = kobject_create_and_add("security", &kernel_subsys.kobj);
+  	security_kobj = kobject_create_and_add("security", &kernel_kset->kobj);
 	if (!security_kobj)
 		return -EINVAL;