CHROMIUM: ALSA: hda/ca0132: Turning on headphone amp 250ms after it is detected.

CHROMIUM: ALSA: hda/ca0132: Turning on headphone amp 250ms after it is detected.

Turing on headphone amp interferes with the detection of mic sense, so we want
to do it later.

Also restore the BIOS default configuration setting because it will be reset
after ct extension is enabled.

BUG=chrome-os-partner:14154
TEST=use alsamixer -c 0 to verify the setting are changed when headphone is
plugged/unplugged.

Signed-off-by: Chih-Chung Chang <chihchung@chromium.org>
Change-Id: I71e714abf6c71c4a23642cf18e1e68b353e42593
Reviewed-on: https://gerrit.chromium.org/gerrit/34276
Reviewed-by: Dylan Reid <dgreid@chromium.org>