libceph: all features fields must be u64

In preparation for ceph_features.h update, change all features fields
from unsigned int/u32 to u64.  (ceph.git has ~40 feature bits at this
point.)

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index 34b11ee..43d8177 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -461,8 +461,8 @@
  * create a fresh client instance
  */
 struct ceph_client *ceph_create_client(struct ceph_options *opt, void *private,
-				       unsigned int supported_features,
-				       unsigned int required_features)
+				       u64 supported_features,
+				       u64 required_features)
 {
 	struct ceph_client *client;
 	struct ceph_entity_addr *myaddr = NULL;