app/testpmd: fix flow rule with flex input link

Testpmd reads flex item configuration from a JSON file.
Flex item input link description is stored in testpmd
flow item format. For example, `eth type is 0x0800`.
The item description is placed into a general testpmd CLI
flow rule command template and parsed to convert string into
flow item object.

The patch adds the `actions` section to the flow rule template.

Fixes: 59f3a8a ("app/testpmd: add flex item commands")
Cc: stable@dpdk.org

Signed-off-by: Gregory Etelson <getelson@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>

app/test-pmd/cmd_flex_item.c

@@ -133,7 +133,8 @@ flex_link_item_parse(const char *src, struct rte_flow_item *item)
 	struct rte_flow_item *pattern;
 	struct rte_flow_action *actions;
 
-	sprintf(flow_rule, "flow create 0 pattern %s / end", src);
+	sprintf(flow_rule,
+		"flow create 0 pattern %s / end actions drop / end", src);
 	src = flow_rule;
 	ret = flow_parse(src, (void *)data, sizeof(data),
 			 &attr, &pattern, &actions);