Change in flashrom[master]: flashchips.c: big erase blocksize first

[Simon Buhrow (Code Review)]

Attention is currently required from: Nico Huber, Angel Pons.
Simon Buhrow has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/58467 )

Change subject: flashchips.c: big erase blocksize first
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Patch Set 5:

(1 comment)

Patchset:

PS5:
> I didn't take a look at the code, but I imagine this tries to use a full chip erase command where po […]

The clou is the condition
```
if ((block_size  == flashctx->chip->total_size * 1024) && per_blockfn == &erase_block){
```
So when the block size equals the flash size it uses the biggest possible erase block size (assuming the eraseblocks are always given in ascending order).

I have never worked with a layout that´s why I didn´t test it. However in case of a given layout the "normal" way should be taken.