dnsmasq: Update to version 2.85

dnsmasq: Update to version 2.85

Fixes issue with merged DNS requests in 2.83/2.84 not being
retried on the firsts failed request causing lookup failures.

Also fixes the following security problem in dnsmasq:
* CVE-2021-3448:
  If specifiying the source address or interface to be used
  when contacting upstream name servers such as:
  server=8.8.8.8@1.2.3.4, server=8.8.8.8@1.2.3.4#66 and
  server=8.8.8.8@eth0 then all would use the same socket
  bound to the explicitly configured port. Now only
  server=8.8.8.8@1.2.3.4#66 will use the explicitly
  configured port and the others random source ports.

Remove upstreamed patches and update remaining patch.

Signed-off-by: Alan Swanson <reiver@improbability.net>
[refreshed old runtime support patch]
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>