meta-openembedded and poky: subtree updates

Squash of the following due to dependencies among them
and OpenBMC changes:

meta-openembedded: subtree update:d0748372d2..9201611135
meta-openembedded: subtree update:9201611135..17fd382f34
poky: subtree update:9052e5b32a..2e11d97b6c
poky: subtree update:2e11d97b6c..a8544811d7

The change log was too large for the jenkins plugin
to handle therefore it has been removed. Here is
the first and last commit of each subtree:

meta-openembedded:d0748372d2
      cppzmq: bump to version 4.6.0
meta-openembedded:17fd382f34
      mpv: Remove X11 dependency
poky:9052e5b32a
      package_ipk: Remove pointless comment to trigger rebuild
poky:a8544811d7
      pbzip2: Fix license warning

Change-Id: If0fc6c37629642ee207a4ca2f7aa501a2c673cd6
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/poky/bitbake/lib/layerindexlib/cooker.py b/poky/bitbake/lib/layerindexlib/cooker.py
index 604a961..65b23d0 100644
--- a/poky/bitbake/lib/layerindexlib/cooker.py
+++ b/poky/bitbake/lib/layerindexlib/cooker.py
@@ -4,9 +4,8 @@
 #
 
 import logging
-import json
 
-from collections import OrderedDict, defaultdict
+from collections import defaultdict
 
 from urllib.parse import unquote, urlparse
 
@@ -94,7 +93,7 @@
             return index
 
         collections = d.getVar('BBFILE_COLLECTIONS')
-        layerconfs = d.varhistory.get_variable_items_files('BBFILE_COLLECTIONS', d)
+        layerconfs = d.varhistory.get_variable_items_files('BBFILE_COLLECTIONS')
         bbfile_collections = {layer: os.path.dirname(os.path.dirname(path)) for layer, path in layerconfs.items()}
 
         (_, bb_branch, _, _) = self._get_bitbake_info()