staging: clean up checkpatch warnings in lustre

Silence checkpatch warning:

WARNING: type 'long long unsigned' should be specified in
[[un]signed] [short|int|long|long long] order
Signed-off-by: Eddie Kovsky <ewk@edkovsky.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/fid/lproc_fid.c

@@ -83,8 +83,8 @@ static int lprocfs_fid_write_common(const char __user *buffer, size_t count,
 
 	/* of the form "[0x0000000240000400 - 0x000000028000400]" */
 	rc = sscanf(kernbuf, "[%llx - %llx]\n",
-		    (long long unsigned *)&tmp.lsr_start,
-		    (long long unsigned *)&tmp.lsr_end);
+		    (unsigned long long *)&tmp.lsr_start,
+		    (unsigned long long *)&tmp.lsr_end);
 	if (!range_is_sane(&tmp) || range_is_zero(&tmp) ||
 	    tmp.lsr_start < range->lsr_start || tmp.lsr_end > range->lsr_end)
 		return -EINVAL;