net/ice: fix priority of DCF switch rule
net/ice: fix priority of DCF switch rule

This patch fixes the reversed priority of DCF switch rule. Priority 0
and 1 are supported, and priority 0 should be the highest priority.

Fixes: 2321e34c23b3 ("net/ice: support flow priority for DCF switch filter")
Cc: stable@dpdk.org

Signed-off-by: Wenjun Wu <f2c8f8c385402f4722593bcff277b2cd6b66f35b@intel.com>
Acked-by: Qi Zhang <9e9e58ffa71a29bb7b87766b362515be648fcbe0@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk