[XL] Change in coreboot[main]: mb/google/brox: Create new Brox baseboard

[Shelley Chen (Code Review)]

Attention is currently required from: Nick Vaccaro.

Shelley Chen has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/78009?usp=email )

Change subject: mb/google/brox: Create new Brox baseboard
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Patch Set 5:

(3 comments)

File src/mainboard/google/brox/variants/brox/include/variant/gpio.h:

https://review.coreboot.org/c/coreboot/+/78009/comment/0c42410e_5021d55c :
PS3, Line 11: define T1_OFF_MS	16
            : #define T2_OFF_MS	2
            :
> NIT - alphabetize

Done

File src/mainboard/google/brox/variants/brox/memory/dram_id.generated.txt:

https://review.coreboot.org/c/coreboot/+/78009/comment/5837de9f_b856c23b :
PS3, Line 7: MT53E512M32D2NP-046 WT:F       0 (0000)
> IMO, it's better to check this file (and others in memory folder) in as empty and then add memory op […]

Done

File src/mainboard/google/brox/variants/brox/overridetree.cb:

https://review.coreboot.org/c/coreboot/+/78009/comment/5dbc2f29_ee717989 :
PS3, Line 1: fw_config
> This is one of those files that you want to be careful with. […]

Ok, I emptied the device tree.