package/dnsmasq: security bump to version 2.87

- Fix CVE-2022-0934:
  https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016274.html
- Drop patches (already in version)
- Update hash of COPYING, slight updates:
  https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commitdiff;h=858bfcf261e12a0baf4de6dbbf3b8858bab7cc53

https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q3/016560.html



Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>