ceph: fix non static symbol warning

Fixes the following sparse warning:

fs/ceph/xattr.c:19:28: warning:
symbol 'ceph_other_xattr_handler' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <[e-mail]>
Signed-off-by: Ilya Dryomov <[e-mail]>

fs/ceph/xattr.c

···
 static int __remove_xattr(struct ceph_inode_info *ci,
 			  struct ceph_inode_xattr *xattr);
 
-const struct xattr_handler ceph_other_xattr_handler;
+static const struct xattr_handler ceph_other_xattr_handler;
 
 /*
  * List of handlers for synthetic system.* attributes. Other
···
 	return __ceph_setxattr(inode, name, value, size, flags);
 }
 
-const struct xattr_handler ceph_other_xattr_handler = {
+static const struct xattr_handler ceph_other_xattr_handler = {
 	.prefix = "",  /* match any name => handlers called with full name */
 	.get = ceph_get_xattr_handler,
 	.set = ceph_set_xattr_handler,