packages: INSTALL_LIBRARY -> INSTALL_LIB and pass INSTALL_{LIB,DATA} in ports Makefile

this fixed the wrong file permissons:

before:

===>   Generating temporary packing list
gmake[2]: Entering directory `/work/a/ports/devel/capstone/work/capstone-2.0'
mkdir -p /work/a/ports/devel/capstone/work/stage/usr/local/lib
install -m0755 libcapstone.so /work/a/ports/devel/capstone/work/stage/usr/local/lib
install -m0644 libcapstone.a /work/a/ports/devel/capstone/work/stage/usr/local/lib
mkdir -p /work/a/ports/devel/capstone/work/stage/usr/local/include/capstone
install -m0644 include/*.h /work/a/ports/devel/capstone/work/stage/usr/local/include/capstone
mkdir -p /work/a/ports/devel/capstone/work/stage/usr/local/libdata/pkgconfig
install -m0644 capstone.pc /work/a/ports/devel/capstone/work/stage/usr/local/libdata/pkgconfig/
gmake[2]: Leaving directory `/work/a/ports/devel/capstone/work/capstone-2.0'

after:

===>   Generating temporary packing list
gmake[2]: Entering directory `/work/a/ports/devel/capstone/work/capstone-2.0'
mkdir -p /work/a/ports/devel/capstone/work/stage/usr/local/lib
install  -s -o root -g wheel -m 444 libcapstone.so /work/a/ports/devel/capstone/work/stage/usr/local/lib
install  -o root -g wheel -m 444 libcapstone.a /work/a/ports/devel/capstone/work/stage/usr/local/lib
mkdir -p /work/a/ports/devel/capstone/work/stage/usr/local/include/capstone
install  -o root -g wheel -m 444 include/*.h /work/a/ports/devel/capstone/work/stage/usr/local/include/capstone
mkdir -p /work/a/ports/devel/capstone/work/stage/usr/local/libdata/pkgconfig
install  -o root -g wheel -m 444 capstone.pc /work/a/ports/devel/capstone/work/stage/usr/local/libdata/pkgconfig/
gmake[2]: Leaving directory `/work/a/ports/devel/capstone/work/capstone-2.0'