Change in coreboot[master]: src/arch/x86/exit_car: Add proper x86_64 code

[Felix Singer (Code Review)]

Attention is currently required from: Patrick Rudolph.
 Felix Singer has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/59873 )

Change subject: src/arch/x86/exit_car: Add proper x86_64 code
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Patch Set 1:

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/59873/comment/e2e5bda5_2ce5ef61 
PS1, Line 9: assemlby
assem_bl_y