Patch merged into coreboot/master: 3c6d36d x230: Fix headset microphone support.

the following patch was just integrated into master:
commit 3c6d36d26fa6a3d195fe455b523f404cf2d646d1
Author: Vladimir Serbinenko 
Date:   Mon May 25 01:47:20 2015 +0200

x230: Fix headset microphone support.

Previously only internal mic really worked but since it's of good quality
    it's not really noticeable.

Change-Id: Ie14c377b0370302d97e1f89eae5787e05e73b7d2
    Signed-off-by: Vladimir Serbinenko 
    Reviewed-on: http://review.coreboot.org/10286
    Tested-by: build bot (Jenkins)
    Reviewed-by: Nicolas Reinecke

See http://review.coreboot.org/10286 for details.

-gerrit