MFH: r523686

www/trafficserver: fix build on powerpc64

This port builds on amd64, but without luajit support since there's no luajit for powerpc64.

Also add USES=localbase instead of LIBS+= and remove unused CONFIGURE_ARGS.

Since files are installed to powerpc-freebsd-thread-multi directory, set proper PLIST_SUB and do-install target.

Don't add -L/usr/lib to LDFLAGS, it breaks when compiling with ports GCC.

PR: 243154
Approved by: gaod@hychen.org (maintainer)
Approved by: portmgr (fix build blanket)