LSM Audit: rename LSM_AUDIT_NO_AUDIT to LSM_AUDIT_DATA_NONE

Most of the LSM common audit work uses LSM_AUDIT_DATA_* for the naming.
This was not so for LSM_AUDIT_NO_AUDIT which means the generic initializer
cannot be used.  This patch just renames the flag so the generic
initializer can be used.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index 989fef8..7f1a304 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -499,8 +499,7 @@
 		return;
 	if (!a) {
 		a = &stack_data;
-		memset(a, 0, sizeof(*a));
-		a->type = LSM_AUDIT_NO_AUDIT;
+		COMMON_AUDIT_DATA_INIT(a, NONE);
 	}
 	a->selinux_audit_data.tclass = tclass;
 	a->selinux_audit_data.requested = requested;