ASoC: rt5663: Add delay for jack plug in

Codec initialize takes some time when 3.5mm jack plugged in. Add a
delay to report jack plugged event to user space to avoid pop noise.

Signed-off-by: Hsinyu Chao <hychao@chromium.org>
Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>