[PATCH] RFC: high level operations support and an example implementation in serprog

[Urja Rannikko]

Hi,

Add mechanism to allow the external programmer to take over a higher
level operation than previously. As an useful first example jedec
toggle ready on serprog is included.

Signed-off-by: Urja Rannikko

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I dont have much to say about this, except that there is one more
patch following this to make proper use of the speed improvement this
allows to write_jedec_1,
and that serprog LPC support still depends on
http://patchwork.coreboot.org/patch/3465/ or something similar.
What do you think?

Oh and there is an example of the device code for this added serprog operation
here: https://github.com/urjaman/frser-atmega644