databases/tile38: Update to 1.11.0

Port changes:

• Changed to DISTVERSION
• Use MAKE_ENV to unbreak it
• Added SSP_UNSAFE because otherwise it doesn't like -fstack-protector

PR: 226378
Submitted by: Andreas Andersson <a.andersson.thn@gmail.com> (maintainer)
Approved by: tcberner (mentor, implicit)