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>
diff --git a/include/net/netlabel.h b/include/net/netlabel.h
index 2c95d55..97e6dca 100644
--- a/include/net/netlabel.h
+++ b/include/net/netlabel.h
@@ -111,7 +111,7 @@
 struct netlbl_audit {
 	u32 secid;
 	kuid_t loginuid;
-	u32 sessionid;
+	unsigned int sessionid;
 };
 
 /*