app/testpmd: add postpone option to async flow destroy

The postpone option is not available in the async flow destroy CLI.
Only flow creation can be postponed in the testpmd application.
Insert this option into the async flow destroy CLI before the rule ID.

Fixes: ecdc927 ("app/testpmd: add async flow create/destroy operations")
Cc: stable@dpdk.org

Signed-off-by: Alexander Kozyrev <akozyrev@nvidia.com>
Reviewed-by: Dariusz Sosnowski <dsosnowski@nvidia.com>

app/test-pmd/cmdline_flow.c

@@ -3703,7 +3703,7 @@ static const struct token token_list[] = {
 	[QUEUE_DESTROY] = {
 		.name = "destroy",
 		.help = "destroy a flow rule",
-		.next = NEXT(NEXT_ENTRY(QUEUE_DESTROY_ID),
+		.next = NEXT(NEXT_ENTRY(QUEUE_DESTROY_POSTPONE),
 			     NEXT_ENTRY(COMMON_QUEUE_ID)),
 		.args = ARGS(ARGS_ENTRY(struct buffer, queue)),
 		.call = parse_qo_destroy,