Provide an option for including the NHLT blobs within the glados mainboard directory while also adding the ACPI NHLT table generation that the current hardware supports. BUG=chrome-os-partner:44481 BRANCH=None TEST=Built and booted. Headphones, speakers, and mic on camera emits and creates sound albeit not the greatest. Change-Id: Iaf910041453695b7125b254ca5d71e8ccbd0b02f Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: ea77d326ba1c33b100c34066ed361a55dfa14ce3 Original-Change-Id: I5d93c3a7fa4cf68ba91f1398b4bd04504a28fef2 Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/315520 Original-Tested-by: Duncan Laurie <dlaurie@chromium.org> Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/12948 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>