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/bb/providers.py b/poky/bitbake/lib/bb/providers.py
index f80963c..81459c3 100644
--- a/poky/bitbake/lib/bb/providers.py
+++ b/poky/bitbake/lib/bb/providers.py
@@ -92,11 +92,11 @@
     Check if the version pe,pv,pr is the preferred one.
     If there is preferred version defined and ends with '%', then pv has to start with that version after removing the '%'
     """
-    if (pr == preferred_r or preferred_r == None):
-        if (pe == preferred_e or preferred_e == None):
+    if pr == preferred_r or preferred_r is None:
+        if pe == preferred_e or preferred_e is None:
             if preferred_v == pv:
                 return True
-            if preferred_v != None and preferred_v.endswith('%') and pv.startswith(preferred_v[:len(preferred_v)-1]):
+            if preferred_v is not None and preferred_v.endswith('%') and pv.startswith(preferred_v[:len(preferred_v)-1]):
                 return True
     return False