graphics/imlib2: Update to 1.12.1
- Switch to DISTVERSION
- Pet portlint, portclippy, portfmt and Q/A check
- Take maintainership
- Drop CONFIGURE_ENV=ac_cv_lib_dl_dlopen=no
- Drop --enable-mmx on supported platforms on this version (see 1.12.1 changelog)
ChangeLog:
https://git.enlightenment.org/old/legacy-imlib2/src/branch/master/ChangeLog
PR: 276369