lib/oe/patch: add missing import

This module refers to oe.types, so it needs to actually import oe.types. Fixes errors when parsing certain OE-Core recipes within the layer index update script.

---
 meta/lib/oe/patch.py | 1 +
 1 file changed, 1 insertion(+)

index f1ab3dd..584bf6c 100644
@@ -1,4 +1,5 @@
 import oe.path
+import oe.types
 
 class NotFoundError(bb.BBHandledException):
     def __init__(self, path):

2.9.5