rebase haswell nri patches to coreboot/default
    
    scrap the haswell tree. handle mrc- and nri-based haswell
    configurations from the same default coreboot tree
    
    this means that it will now be possible to use it on the
    dell 9020 sff/mt ports
    
    only txtmode configs were available before, on libremrc
    setups for w541/t440p. because the grub payload was added,
    i've now added the corebootfb configs.
    
    the libremrc configs have been re-done, by re-copying the
    mrc ones and then turning off mrc, instead enabling nri
    
    Signed-off-by: Leah Rowe <leah@libreboot.org>