[linux-vr-cvsupdate] Update to module linux

[Chris A. <sl...@us...>]

Update of /cvsroot/linux-vr/linux/include/linux
In directory usw-pr-cvs1:/tmp/cvs-serv4642/linux

Modified Files:
	buttons.h 
Log Message:
Added defines for the battery door and pen switches
battery door and pen switches included in GPIO button mapping
Power switch GPIO included in GPIO button mapping