hardwaremain.c is the common ramstage entry to all platforms so move out ACPI code generation (x86 specific) to boot state hooks. Another reason to do this is the following: On some platforms that start in dram it makes little sense to have separate stages. To reduce the complexity we want to call the ramstage main function instead of loading a full stage. To make this scheme more maintainable it makes sense to move out as much functionality from the 'main' function as possible. Change-Id: I613b927b9a193fc076ffb1b2a40c617965ce2645 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63414 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>