MFH: r554663

databases/mysql80-server: fix build on GCC architectures

Include sys/types.h to make u_int32_t available:
/usr/include/netinet/ip6.h:77:4: error: 'u_int32_t' does not name a type; did you mean 'uint32_t'?

Approved by: portmgr (fix build blanket)