Revert "Refactor sdk_car_md_x86_64.mk"

This reverts commit de76a7a98d3555d98d520f18a8e3374b8e192cc6.

Reason for revert: broken build

Bug: 278320718
Change-Id: Ief17ec7fc834aa825866928264fb8f1cf2e82709
6 files changed