Update config.guess and config.sub from
https://git.savannah.gnu.org/cgit/config.git.

Backport of r1820186 from trunk
resp. r1820187 from 1.7.x
resp. r1820188 from 1.6.x.


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/branches/1.5.x@1820189 13f79535-47bb-0310-9956-ffa450edef68