Add the hpt37xx driver to the tree.
This driver was written by Highpoint and supports the
3740A 12Gbps SAS RAID controller as well as the 3840A
NVMe RAID controller.
wrt amd64-elf.hpt37xx_lib.o.uu, I'd like us to stop uuencoding objects, they can just be committed directly.
We have a number of binary files in the tree already, some representative examples: