Add base genesis board, just copied from Sockit

This is really just Sockit, renamed and ethernet stripped out.

Still need to add the Genesis pinmuxing etc before it is useful.

Signed-off-by: Charles Manning <cdhmanning@gmail.com>
Change name in make-boot-blob.sh script

This is just a handly little script. Not part of u-boot or anything.

Signed-off-by: Charles Manning <cdhmanning@gmail.com>
Copy in preloader changes for Genesis pinmuxing etc.

These are all the files generated by the Qsys handoff etc.

Note that sdram/sdram_config.h has not been updated yet. Still going
with the old settings. Will pull the new ones in later if needed.

Signed-off-by: Charles Manning <cdhmanning@gmail.com>