[dts][PATCH V2] tests/vf_offload: fix syntax errors

[Jiale, SongX]

> -----Original Message-----
> From: Weiyuan Li <weiyuanx.li at intel.com>
> Sent: Tuesday, January 10, 2023 5:30 PM
> To: dts at dpdk.org
> Cc: Li, WeiyuanX <weiyuanx.li at intel.com>
> Subject: [dts][PATCH V2] tests/vf_offload: fix syntax errors
> 
> Scapy send package count can't have quotation marks. Otherwise, send the
> packet fails.
> 
> Signed-off-by: Weiyuan Li <weiyuanx.li at intel.com>
> ---
Tested-by: Song Jiale <songx.jiale at intel.com>