Add device tree options to enable beeps when exceeding temperature,
voltage, and fan limits. As of this commit, setting voltage and fan
limits is not implemented.
Change-Id: I57ce622ee4498b75f00e678c2e6d72e499925bce
Signed-off-by: Vagiz Trakhanov <rakkin@autistici.org>
Reviewed-on: https://review.coreboot.org/22141
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>