s390/cache: change type from unsigned long long to unsigned long

The unsigned long long type is a leftover of the 31 bit area.
Get rid of it.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

arch/s390/kernel/cache.c

@@ -46,7 +46,7 @@ struct cache_info {
 #define CACHE_MAX_LEVEL 8
 union cache_topology {
 	struct cache_info ci[CACHE_MAX_LEVEL];
-	unsigned long long raw;
+	unsigned long raw;
 };
 
 static const char * const cache_type_string[] = {