update devel/mico:
- fix build and enable CSL2 on -STABLE with gcc32 port
- add patch for externalize service from developers
- change WITH_GCC32 to WITH_SYSTEM_GCC. Mico builds best with gcc32,
so it's default now
- bump PORTVERSION
PR: 54350
Submitted by: Sergey Matveychuk <sem@ciam.ru> (maintainer)