nightly-x86-lsb.xconf: add layerversion to poky repo def
nightly-x86-lsb.xconf: add layerversion to poky repo def

layerversion is needed within the repo definition

Signed-off-by: Elizabeth Flanagan <86e3219095765dcc0f6f42aef4bd43803a05b796@intel.com>

denny820909/builder,denny820909/builder,denny820909/builder,denny820909/builder