[linux-vr-cvsupdate] Update to module linux

[Rob L. <ver...@us...>]

Update of /cvsroot/linux-vr/linux/drivers/sound
In directory usw-pr-cvs1:/tmp/cvs-serv23865/drivers/sound

Modified Files:
	Config.in Makefile 
Added Files:
	vr4181.c 
Log Message:
New Vr4181 sound driver. Audio out somewhat tested; audio in (mic) untested.
Agenda VR3-specific GPIO twiddling for speaker on/off.