Some change in base broke compilation with libusb and this package.
From looking at it more carefully, it turns out that the libusb patch
needs to be updated so that host paths are not used.

libusb-compat also depends on libusb, which increases the overall
installed size.

Refreshed patches with make package/hplip/refresh .

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Added patch to fix some glibc-isms.

Added PKG_BUILD_PARALLEL for faster compilation.

Rearranged slightly for consistency between packages.

Signed-off-by: Rosen Penev <rosenp@gmail.com>