Log Message:
Update to dhcpcd-8.1.7 with the following changes:

 * Decode interface complex interface names eth0.100:2 eth0i100:2.
   This allows us to ignore some virtual interfaces by default
 * ARP: Report L2 header address on conflict for more clarity
 * DHCP: Support jumbo frames (untested)
 * DHCP6: Clean up old lease on failure to confirm/rebind, etc
 * RA: Prefer older routers
 * INET6: Obscure prefixes are now calculated correctly