3e248e0fb4
Adopt the OpenBSD syntax for setting and filtering on VLAN PCP values. This introduces two new keywords: 'set prio' to set the PCP value, and 'prio' to filter on it. Reviewed by: allanjude, araujo Approved by: re (gjb) Obtained from: OpenBSD (mostly) Differential Revision: https://reviews.freebsd.org/D6786