Add support for new flash chip

[Sol Mayers]

Please add support for flash chip:
Atmel flash chip "AT49F001(N)" (128 kB, Parallel)

[Anastasia Klimchuk]

Hello Sol,

If you have time and energy, you can try and add the support yourself.
Do you have the chip to test it?

There are two relevant docs on the topic:
Dev guide https://www.flashrom.org/dev_guide/development_guide.html
and how to add chip
https://wiki.flashrom.org/Development_Guidelines#Adding/reviewing_a_new_flas...

Also I am planning to modernise the doc "how to add a new chip" soon,
but meanwhile you can use the existing one.
Thank you!