grunt/barla: add Realtek ALC5682 beep support

barla skuid to support ALC5682: 0x2c~0x2f

BUG=b:171755306
BRANCH=none
TEST=emerge-grunt coreboot
TEST=boot beep works

Change-Id: I815c76801f1aab5847eb4f401fdb352526fd827d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/depthcharge/+/2786686
Tested-by: Kevin Chiu <kevin.chiu@quanta.corp-partner.google.com>
Auto-Submit: Kevin Chiu <kevin.chiu@quanta.corp-partner.google.com>
Reviewed-by: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Commit-Queue: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Commit-Queue: Kevin Chiu <kevin.chiu@quanta.corp-partner.google.com>
1 file changed