[Buildroot] [PATCH/next 1/2] c-ares: use LICENSE.md

[Peter Korsgaard]

>>>>> "Fabrice" == Fabrice Fontaine <fontaine.fabrice at gmail.com> writes:

 > c-ares has a LICENSE.md file since version 1.12 and
 > https://github.com/c-ares/c-ares/commit/4e861351d9deaef7b78aee50ce9229325f4fc59a

 > So use it instead of one of the source file and add its hash

 > Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>

Committed to 2018.02.x and 2018.08.x, thanks.

-- 
Bye, Peter Korsgaard