Use __u64 rather than u64 in the struct statfs64 exported to userspace.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

--- a/include/asm-parisc/statfs.h
+++ b/include/asm-parisc/statfs.h
@@ -30,11 +30,11 @@ struct statfs {
 struct statfs64 {
 	long f_type;
 	long f_bsize;
-	u64 f_blocks;
-	u64 f_bfree;
-	u64 f_bavail;
-	u64 f_files;
-	u64 f_ffree;
+	__u64 f_blocks;
+	__u64 f_bfree;
+	__u64 f_bavail;
+	__u64 f_files;
+	__u64 f_ffree;
 	__kernel_fsid_t f_fsid;
 	long f_namelen;
 	long f_frsize;