xfs: use kvfree in xfs_ioc_getfsmap()

Another incorrect conversion to kfree() instead of kvfree().

Fixes: 4929257613 ("xfs: convert kmem_free() for kvmalloc users to kvfree()")
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>

fs/xfs/xfs_ioctl.c

@@ -1636,7 +1636,7 @@ xfs_ioc_getfsmap(
 	}
 
 out_free:
-	kfree(recs);
+	kvfree(recs);
 	return error;
 }