TOMOYO: Fix domain transition failure warning.

Commit bd03a3e4 "TOMOYO: Add policy namespace support." introduced policy
namespace. But as of /sbin/modprobe is executed from initramfs/initrd, profiles
for target domain's namespace is not defined because /sbin/tomoyo-init is not
yet called.

Reported-by: Jamie Nguyen <[e-mail]>
Signed-off-by: Tetsuo Handa <[e-mail]>
Signed-off-by: James Morris <[e-mail]>

security/tomoyo/domain.c

···
 			 * that domain. Do not perform domain transition if
 			 * profile for that domain is not yet created.
 			 */
-			if (!entry->ns->profile_ptr[entry->profile])
+			if (tomoyo_policy_loaded &&
+			    !entry->ns->profile_ptr[entry->profile])
 				return NULL;
 		}
 		return entry;