lib: Move Chrome OS specific constants to new 'chromeos.h'

The `acpi.h` has some constants that are very Chrome OS specific and may
be needed by other non-ACPI modules, so we should move that to a new
header file 'chromeos.h'.

TEST=emerge-eve mosys

Change-Id: I2370004142cc5265cd49ab3744c9d7f07bfd3cd2
Tested-by: Hung-Te Lin <>
Commit-Ready: Hung-Te Lin <>
Legacy-Commit-Queue: Commit Bot <>
Reviewed-by: Philip Chen <>
Reviewed-by: Furquan Shaikh <>
3 files changed