[coreboot-gerrit] Change in coreboot[master]: arch/x86: Include stack_top region into postcar_frame

[Subrata Banik (Code Review)]

Subrata Banik has abandoned this change. ( https://review.coreboot.org/c/coreboot/+/34991 )

Change subject: arch/x86: Include stack_top region into postcar_frame
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Abandoned

will write case study on WB MTRR implication later