audit: convert all sessionid declaration to unsigned int

Right now the sessionid value in the kernel is a combination of u32,
int, and unsigned int.  Just use unsigned int throughout.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>

kernel/auditfilter.c

diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c
index 6cc8240..629834a 100644
--- a/kernel/auditfilter.c
+++ b/kernel/auditfilter.c
@@ -1005,7 +1005,7 @@
 {
 	struct audit_buffer *ab;
 	uid_t loginuid = from_kuid(&init_user_ns, audit_get_loginuid(current));
-	u32 sessionid = audit_get_sessionid(current);
+	unsigned int sessionid = audit_get_sessionid(current);
 
 	if (!audit_enabled)
 		return;