Patch merged into coreboot/master: sio/winbond/common: Add function to configure pin mux

the following patch was just integrated into master:
commit e4cca16b426f3907983992352ae9ace7cce1c41f
Author: Timothy Pearson 
Date:   Tue May 24 15:48:50 2016 -0500

sio/winbond/common: Add function to configure pin mux

Certain mainboards require SuperIO pinmux configuration before
    peripherals will become operational.  Allow each mainboard to
    configure the pinmux(es) of Winbond chips if needed.

Change-Id: Ice19f8d8514b66b15920a5b893700d636ed75cec
    Signed-off-by: Timothy Pearson 
    Reviewed-on: https://review.coreboot.org/14960
    Tested-by: build bot (Jenkins)
    Reviewed-by: Felix Held

See https://review.coreboot.org/14960 for details.

-gerrit