[S] Change in flashrom[main]: flashchips.c: Add support for XM25RU256C

[Georg Gottleuber (Code Review)]

Attention is currently required from: Anastasia Klimchuk, Nikolai Artemiev, Stefan Reinauer.

Georg Gottleuber has posted comments on this change by Georg Gottleuber. ( https://review.coreboot.org/c/flashrom/+/82101?usp=email )

Change subject: flashchips.c: Add support for XM25RU256C
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Patch Set 4:

(2 comments)

Patchset:

PS3:
> Is this for 4K sector? You can add it to the array of block_erasers, next to existing SPI_BLOCK_ERAS […]
> Yes it is also for 4KB sectors. This mode is similar to SPI_BLOCK_ERASE_20 but uses 32-bit address instead of 24-bit address. At the moment I have no access to a XM25RU256C chip. Therefore I leave it.

File flashchips.c:

https://review.coreboot.org/c/flashrom/+/82101/comment/8254491f_411d5dd2?usp... :
PS3, Line 22118: TEST_UNTESTED
> This probably slipped from a previous version of the patch? You already changed tested status to `TE […]
> Done