datapath-windows: Fix misspelling in comment.
Found by inspection.
Acked-by: Shashank Ram
@@ -1618,7 +1618,7 @@ OvsTunnelFilterSetIrpContext(POVS_TUNFLT_REQUEST_LIST listRequests,
/*
* --------------------------------------------------------------------------
* This function is the Cancel routine to be called by the I/O Manager in the
- * case when the IRP is cancelled.
+ * case the IRP is canceled.
* --------------------------------------------------------------------------
*/
VOID
