Add a new EPROM partition, adjusting partition placement.

Add EPROM range commands as a supserset of the partition
commands.  Remove old partition commands.

Enhance EPROM erase, creating a range function and using the
largest erase (sub) commands when possible.
Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: NDean Luick <dean.luick@intel.com>
Signed-off-by: NJubin John <jubin.john@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>