[coreboot-gerrit] Change in coreboot[master]: Kconfig: Escape variable to accommodate new Kconfig versions

[Patrick Georgi (Code Review)]

Patrick Georgi has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/42481 )

Change subject: Kconfig: Escape variable to accommodate new Kconfig versions
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Patch Set 2:
> Patch Set 1: Code-Review+1
>
> Which version of kconfig needs this? And will this changes still work with older versions?

Still works with the old version and kconfig as of Linux 4.17 has that new capability. Added both to the commit message.