Changes for v32

Hello team, here are a couple of changes for the next v32 release. Not entirely sure when that'll be, so an early heads-up.

• just after v31, upstream has landed "--with-module-directory" option, which allows for /usr/lib/modules, over the current hardcoded /lib/modules
• I've just submitted an upstream patch, so the insmod, rmmod and related symlinks are created on make install - will update the MR if it gets declined

HTH o/