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/scripts/lib/recipetool/create_buildsys_python.py b/import-layers/yocto-poky/scripts/lib/recipetool/create_buildsys_python.py
index ec5449b..5bd2aa3 100644
--- a/import-layers/yocto-poky/scripts/lib/recipetool/create_buildsys_python.py
+++ b/import-layers/yocto-poky/scripts/lib/recipetool/create_buildsys_python.py
@@ -356,6 +356,8 @@
         # Naive mapping of setup() arguments to PKG-INFO field names
         for d in [info, non_literals]:
             for key, value in list(d.items()):
+                if key is None:
+                    continue
                 new_key = _map(key)
                 if new_key != key:
                     del d[key]