[S] Change in coreboot[main]: util/cbfstool: Add `PL64` segment for payload

[Subrata Banik (Code Review)]

Attention is currently required from: Arthur Heymans, Elyes Haouas, Julius Werner, Patrick Rudolph.

Subrata Banik has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/81964?usp=email )

Change subject: util/cbfstool: Add `PL64` segment for payload
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Patch Set 3:

(3 comments)

Patchset:

PS1:
> > > > > > Why not parse the ELF for architecture? […]

Acknowledged

File src/commonlib/bsd/include/commonlib/bsd/cbfs_serialized.h:

https://review.coreboot.org/c/coreboot/+/81964/comment/7735cc00_2570275d :
PS2, Line 144: /* 1 for 64-bit payload. 0 for 32-bit payload. */
             : 	uint32_t payload_64_bit;
> payload_64_bit is used as boot in util/cbfstool/cbfstool.c file. […]

Acknowledged

File util/cbfstool/cbfstool.c:

https://review.coreboot.org/c/coreboot/+/81964/comment/3646e57d_bddbe3c1 :
PS2, Line 2006: 64
> has an x86_64 entry point

Acknowledged