1.Use PM8921_GPIO_PM_TO_SYS(18) as speaker amp. 2.Disable wcd9310 headset detection function. Change-Id: I5a5b8a38ef2cd30efb318a919f9490415302d67c Reviewed-on: http://mcrd1-5.corpnet.asus/code-review/master/67836 Reviewed-by: Jive Hwang <jive_hwang@asus.com> Tested-by: Jive Hwang <jive_hwang@asus.com>