mb/google/myst: Expose SKU and board ID to Chrome OS
Select EC_GOOGLE_CHROMEEC_SKUID and EC_GOOGLE_CHROMEEC_BOARDID to
provide common routine for reading skudid and boardid from Chrome EC.
BUG=b:
277293398
TEST=builds
Change-Id: I8e42ba23dada9771f335df34275e44e51d645596
Signed-off-by: Jon Murphy <jpmurphy@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74283
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>