gcc: convert to new package scheme

Signed-off-by: Stephan Raue <stephan@openelec.tv>
cpio: convert to new package scheme

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xz: convert to new package scheme

Signed-off-by: Stephan Raue <stephan@openelec.tv>
bison: convert to new package scheme

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xz: convert to new package scheme, try #2

Signed-off-by: Stephan Raue <stephan@openelec.tv>
binutils: convert to new package scheme

Signed-off-by: Stephan Raue <stephan@openelec.tv>
ccache: convert to new package scheme

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