[dts] [PATCH v3]test_plans: adapt to rss refactor and add GTPoGRE packets

[Tu, Lijuan]

> According to the RSS refactor, we changed the negative case, toeplitz case and
> symmetric cases
> in such three test plans:
> cvl_advanced_rss_test_plan.rst
> cvl_advanced_rss_gtpu_test_plan.rst
> cvl_advanced_rss_pppoe_vlan_esp_ah_l2tp_pfcp_test_plan.rst
> 
> add GTPoGRE packets check to cvl_advanced_rss_gtpu_test_plan.rst
> 
> Signed-off-by: Peng Yuan <yuan.peng at intel.com>

Applied, thanks