boot/lpc32xxcdl: switch upstream location
The upstream git tree has disappeared, but a ZIP file is still hosted
somewhere at NXP. The content of that zip file has been verified to be
100% identical to the tarball we hosted on s.b.o.
As this is a zip file, we can't use the generic extract commands, and
must come up with our own. As such, it no longer makes sense to fix the
CRLF as a post-extract hook; this is moved to the extract command.
Add a hash file while at it.
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>