[coreboot] [RFC] Successful build with GCC 7.2 and IASL 20170831 for coreboot 4.7

[Paul Menzel]

Dear coreboot folks,

I’d like to propose the following goal for the upcoming coreboot 4.7
release.

All boards have to build with GCC 7.2 [1] and IASL 20170831 [2].

For the latter, several Intel boards fail to build [3]. It’d be great
if the maintainers looked into it.

Thanks,

Paul

[1] https://review.coreboot.org/20809/
[2] https://review.coreboot.org/21156/
[3] https://ticket.coreboot.org/issues/138