binutils: clean up ppl/mpc/mpfr

mpc/mpfr not required for binutils
automake: fix broken (re)build

because for some weird help2man related fail
re-building automake:host sometimes fails

we dont care for docs..
gmp:host: build static
mpc:host: build static
mpfr:host: build static
mpfr:host: remove autoreconf hack
libffi: fix libffi.pc
libffi: build static
util-linux: fix pkgconf
kmod: fix pkgconf
systemd: fix pkgconf
pciutils: fix pkgconf
freetype: fix pkgconf
glew: fix pkgconf
taglib: fix pkgconf
toolchain: switch to pkgconf

WARNING this breaks *some* packages that ship wrong pkgconfig info
xorg-server: remove not more needed patch after switch to package 'pkgconf'

Signed-off-by: Stephan Raue <stephan@openelec.tv>