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/meta/lib/oeqa/selftest/cases/oescripts.py b/poky/meta/lib/oeqa/selftest/cases/oescripts.py
index 41cbe04..2f18d8f 100644
--- a/poky/meta/lib/oeqa/selftest/cases/oescripts.py
+++ b/poky/meta/lib/oeqa/selftest/cases/oescripts.py
@@ -4,6 +4,7 @@
 
 import os
 import shutil
+import importlib
 import unittest
 from oeqa.selftest.case import OESelftestTestCase
 from oeqa.selftest.cases.buildhistory import BuildhistoryBase
@@ -33,15 +34,13 @@
         if expected_endlines:
             self.fail('Missing expected line endings:\n  %s' % '\n  '.join(expected_endlines))
 
+@unittest.skipUnless(importlib.util.find_spec("cairo"), "Python cairo module is not present")
 class OEScriptTests(OESelftestTestCase):
 
     @classmethod
     def setUpClass(cls):
         super(OEScriptTests, cls).setUpClass()
-        try:
-            import cairo
-        except ImportError:
-            raise unittest.SkipTest('Python module cairo is not present')
+        import cairo
         bitbake("core-image-minimal -c rootfs -f")
         cls.tmpdir = get_bb_var('TMPDIR')
         cls.buildstats = cls.tmpdir + "/buildstats/" + sorted(os.listdir(cls.tmpdir + "/buildstats"))[-1]