[dts] [PATCH V1] tests/cvl_advanced_iavf_rss_gtpu:modified destroy rule action and optimized code

[Tu, Lijuan]

> toeplitz:
> delete destroy rule action, only verified destroy rule successed.
> 
> symmetric:
> modified send pkts type after destroy rule.
> 
> Signed-off-by: Zhimin Huang <zhiminx.huang at intel.com>

Applied, thanks