enable vmware drm drivers

This speeds up VMWare graphics performance. Previously, I recall this
not working, but I tested again and it's working fine as long as it's
compiled builtin and not as a module.

Change-Id: I2efe9e5c776e74ebf92a2ff80651dee37d0c48da
Signed-off-by: Martin Kelly <mkelly@xevo.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/11169
Tested-by: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-build: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>