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/oe/rootfs.py b/poky/meta/lib/oe/rootfs.py
index c62fa5f..cd65e62 100644
--- a/poky/meta/lib/oe/rootfs.py
+++ b/poky/meta/lib/oe/rootfs.py
@@ -126,17 +126,16 @@
             bb.utils.mkdirhier(self.image_rootfs + os.path.dirname(dir))
             shutil.copytree(self.image_rootfs + '-orig' + dir, self.image_rootfs + dir, symlinks=True)
 
-        cpath = oe.cachedpath.CachedPath()
         # Copy files located in /usr/lib/debug or /usr/src/debug
         for dir in ["/usr/lib/debug", "/usr/src/debug"]:
             src = self.image_rootfs + '-orig' + dir
-            if cpath.exists(src):
+            if os.path.exists(src):
                 dst = self.image_rootfs + dir
                 bb.utils.mkdirhier(os.path.dirname(dst))
                 shutil.copytree(src, dst)
 
         # Copy files with suffix '.debug' or located in '.debug' dir.
-        for root, dirs, files in cpath.walk(self.image_rootfs + '-orig'):
+        for root, dirs, files in os.walk(self.image_rootfs + '-orig'):
             relative_dir = root[len(self.image_rootfs + '-orig'):]
             for f in files:
                 if f.endswith('.debug') or '/.debug' in relative_dir: