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/meta-openembedded/meta-python/recipes-devtools/python/python3-cachecontrol_0.12.6.bb b/meta-openembedded/meta-python/recipes-devtools/python/python3-cachecontrol_0.12.6.bb
new file mode 100644
index 0000000..7c45ed3
--- /dev/null
+++ b/meta-openembedded/meta-python/recipes-devtools/python/python3-cachecontrol_0.12.6.bb
@@ -0,0 +1,29 @@
+SUMMARY = "httplib2 caching for requests"
+HOMEPAGE = "https://pypi.org/project/CacheControl/"
+LICENSE = "Apache-2.0"
+LIC_FILES_CHKSUM = "file://LICENSE.txt;md5=6dc7e1b428eda03d850209fdbd6c71f1"
+
+# On PyPi, this is "CacheControl", rather than "cachecontrol", so we need to
+# override PYPI_PACKAGE so fetch succeeds.
+PYPI_PACKAGE = "CacheControl"
+
+SRC_URI[md5sum] = "5890b797f9b48b2b4cd1448cca89e396"
+SRC_URI[sha256sum] = "be9aa45477a134aee56c8fac518627e1154df063e85f67d4f83ce0ccc23688e8"
+
+inherit pypi setuptools3
+
+RDEPENDS_${PN} += "\
+    python3-crypt \
+    python3-datetime \
+    python3-email \
+    python3-lockfile \
+    python3-json \
+    python3-logging \
+    python3-msgpack \
+    python3-netclient \
+    python3-pickle \
+    python3-requests \
+    python3-urllib3 \
+"
+
+BBCLASSEXTEND = "native nativesdk"