[M] Change in coreboot[main]: libpayload/x86: Extend exception handling to x86_64 architecture

[Kapil Porwal (Code Review)]

Attention is currently required from: Julius Werner, Paul Menzel, Subrata Banik.

Kapil Porwal has posted comments on this change by Subrata Banik. ( https://review.coreboot.org/c/coreboot/+/83036?usp=email )

Change subject: libpayload/x86: Extend exception handling to x86_64 architecture
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Patch Set 19: Code-Review+2

(1 comment)

File payloads/libpayload/arch/x86/exception_asm_64.S:

https://review.coreboot.org/c/coreboot/+/83036/comment/064c3e12_ee580105?usp... :
PS19, Line 337: 1:
```suggestion
patch_idt:
```