vendorcode/google/chromeos: Add API for Chromebook Plus check

This patch implements an API which relies on the
chromeos_get_factory_config() function to retrieve the factory
config value.

This information is useful to determine whether a ChromeOS device
is branded as a Chromebook Plus based on specific bit flags:

   - Bit 4 (0x10): Indicates whether the device chassis has the
                  "chromebook-plus" branding.
   - Bits 3-0 (0x1): Must be 0x1 to signify compliance with
		   Chromebook Plus hardware specifications.

BUG=b:317880956
TEST=Able to verify that google/screebo is branded as
Chromebook Plus.

Change-Id: Iebaed1c60e34af4cc36316f1f87a89df778b0857
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79763
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>

0 files changed, 0 insertions, 0 deletions