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/pyinotify.py b/poky/bitbake/lib/pyinotify.py
index 1528a22..6ae40a2 100644
--- a/poky/bitbake/lib/pyinotify.py
+++ b/poky/bitbake/lib/pyinotify.py
@@ -1274,7 +1274,7 @@
             basename = os.path.basename(sys.argv[0]) or 'pyinotify'
             pid_file = os.path.join(dirname, basename + '.pid')
 
-        if pid_file != False and os.path.lexists(pid_file):
+        if pid_file and os.path.lexists(pid_file):
             err = 'Cannot daemonize: pid file %s already exists.' % pid_file
             raise NotifierError(err)
 
@@ -1308,7 +1308,7 @@
         fork_daemon()
 
         # Write pid
-        if pid_file != False:
+        if pid_file:
             flags = os.O_WRONLY|os.O_CREAT|os.O_NOFOLLOW|os.O_EXCL
             fd_pid = os.open(pid_file, flags, 0o0600)
             os.write(fd_pid,  bytes(str(os.getpid()) + '\n',