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/meta/lib/oe/patch.py b/import-layers/yocto-poky/meta/lib/oe/patch.py
index f1ab3dd..584bf6c 100644
--- a/import-layers/yocto-poky/meta/lib/oe/patch.py
+++ b/import-layers/yocto-poky/meta/lib/oe/patch.py
@@ -1,4 +1,5 @@
 import oe.path
+import oe.types
 
 class NotFoundError(bb.BBHandledException):
     def __init__(self, path):