Yocto 2.4

Move OpenBMC to Yocto 2.4(rocko)

Tested: Built and verified Witherspoon and Palmetto images
Change-Id: I12057b18610d6fb0e6903c60213690301e9b0c67
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/import-layers/yocto-poky/bitbake/lib/bblayers/layerindex.py b/import-layers/yocto-poky/bitbake/lib/bblayers/layerindex.py
index 506c110..9af385d 100644
--- a/import-layers/yocto-poky/bitbake/lib/bblayers/layerindex.py
+++ b/import-layers/yocto-poky/bitbake/lib/bblayers/layerindex.py
@@ -247,6 +247,7 @@
                         logger.plain("Adding layer \"%s\" to conf/bblayers.conf" % name)
                     localargs = argparse.Namespace()
                     localargs.layerdir = layerdir
+                    localargs.force = args.force
                     self.do_add_layer(localargs)
                 else:
                     break