Change in flashrom[master]: tests: Add tests to erase a chip

[Edward O'Callaghan (Code Review)]

Attention is currently required from: Nico Huber, Angel Pons, Anastasia Klimchuk.
Edward O'Callaghan has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/56501 )

Change subject: tests: Add tests to erase a chip
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Patch Set 3:

(2 comments)

File tests/chip.c:

https://review.coreboot.org/c/flashrom/+/56501/comment/36d9ef4b_32b325ed 
PS3, Line 26: chip_state
g_chip_state

https://review.coreboot.org/c/flashrom/+/56501/comment/a58b6776_86b87f03 
PS3, Line 37: 	/*
            : 	 * Populate buf with the value used for erase operation, this allows to pass
            : 	 * verification checks and also emulates successful erase.
            : 	 */
            : 	buf = memset(buf, 0xff, len);
this should be coming from the chip state now