SIO: Winbond w83627dhg update

SIO: Winbond w83627dhg update

1. Stop include c file.
2. W83627dhg Pin 89, Pin 90 are multi function pins,
   add support to select them to I2C function.

Change-Id: I42eaaf7d70aa48d7edf2710349b51e401526c1a6
Signed-off-by: Kerry Sheh <kerry.she@amd.com>
Signed-off-by: Kerry Sheh <shekairui@gmail.com>
Reviewed-on: http://review.coreboot.org/565
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>