Change in flashrom[master]: bitbang_spi: Add half-duplex optimizations

[Nico Huber (Code Review)]

Nico Huber has posted comments on this change. ( https://review.coreboot.org/26947 )

Change subject: bitbang_spi: Add half-duplex optimizations
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Patch Set 2:

(1 comment)

https://review.coreboot.org/#/c/26947/2/bitbang_spi.c
File bitbang_spi.c:

https://review.coreboot.org/#/c/26947/2/bitbang_spi.c@128
PS2, Line 128: 		if (i == 0)
             : 			bitbang_spi_set_sck_set_mosi(master, 0, 0);
             : 		else
             : 			bitbang_spi_set_sck(master, 0);
> SPI is an ad-hoc standard; very little is defined anywhere! […]

I wasn't paying attention obviously. It's not about SPI but whatever
the flash chip expects after the command. I can see from random data-
sheets that they don't care. But that's no proof that there is no
chip that does care so let's keep it.