winsys/svga: Update to vmwgfx kernel module 2.1

winsys/svga: Update to vmwgfx kernel module 2.1

Introduces fence objecs and a size limit on query buffers.
The possibility to map the fifo from user-space is gone, and
replaced by an ioctl that reads the 3D capabilities.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecranz <jakob@vmware.com>