net/dhcpcd: 6.9.3 -> 6.9.4

Changes:

• dhcpcd will now configure chrony if installed and ntp isn't
• replace the SixRD decode function with a generic definition
• try harder to ensure only 1 lladdr exists per interface on BSD
• change IPv6 routes on MTU change
• -p works with -x on an already running process started without -p
• fix TEST for IPv4LL
• Correct size allocation for prefix delegation, thanks to Jade
• Add an option to enable DHCPv6 Information Request without the need for dhcpcd to recieve an IPv6 Router Advertisement with the Other Configuration bit set.
• Introduce the optional option type, which allows embedded options to be optional
• Mark our logger function as sysloglike because we enjoy using %m
• Don't check link state if not instruted to before working out if we can fork early or not.
• Add a -N --renew option to renew any existing address early
• Obey the hostname_short option even for configured FQDN hostnames
• -U, --dumplease now works with standard input. It no longer works with a filename.
• If dumping leases, skip authentication and address expiry checks
• Fix adding static routes via a gateway on BSD
• Always send LOG_DEBUG to syslog(3) even if we are in quiet mode. It's upto syslog to filter it.
• If testing or dumping leases, don't send to syslog only stdout/stderr.

PR: 204936
Submitted by: roy@marples.name (maintainer)