Buddy: Switch to PC AT Beep driver

This board has a simple beeper instead of internal speaker.

BUG=None
TEST=Compiled
Signed-off-by: Ted Kuo <tedkuo@ami.com.tw>

Change-Id: Icdc448189fb68c0b70841a16eaab7d0157af3a01
Reviewed-on: https://chromium-review.googlesource.com/292030
Reviewed-by: Shawn N <shawnn@chromium.org>
Commit-Queue: Ted Kuo <tedkuo@ami.com.tw>
Tested-by: Ted Kuo <tedkuo@ami.com.tw>
2 files changed