Change in coreboot[master]: drivers/intel/fsp2_0: Add support for FSP runs in long mode (x86_64)

[Wonkyu Kim (Code Review)]

Attention is currently required from: Subrata Banik, Mariusz Szafrański, Jonathan Zhang, Arthur Heymans, Andrey Petrov, Patrick Rudolph, Jason Glenesk, Anjaneya "Reddy" Chagam, Marshall Dawson, Johnny Lin, Tim Wawrzynczak, Christian Walter, Suresh Bellampalli, Vanessa Eusebio, Michal Motyl, Tim Chu, Felix Held.
Wonkyu Kim has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/59744 )

Change subject: drivers/intel/fsp2_0: Add support for FSP runs in long mode (x86_64)
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Patch Set 7:

(1 comment)

File src/drivers/intel/fsp2_0/include/fsp/info_header.h:

https://review.coreboot.org/c/coreboot/+/59744/comment/bccb57eb_d5a47d0a 
PS6, Line 41: uint64_t
it looks only address related parameters are changed to 64bit.
Can we use uintptr_t instead of conditional definition?
I think if we use uintptr_t it can work for both 32bit and 64bit.