{glkrvp,octopus}: Use the common I2S driver for boot beep

This patch modifies the Kconfig and function name to use the
common I2S driver for enabling the boot beep for GLK based platforms

BUG=b:123639961
BRANCH=none
TEST=Verified the boot beep using devbeep command on octopus-bobba.
.
Change-Id: Id080be79c77597076264610955fecdbca696450a
Signed-off-by: V Sowmya <v.sowmya@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/1488353
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
4 files changed