reset upstream subtrees to HEAD

Reset the following subtrees on HEAD:
  poky: 8217b477a1(master)
  meta-xilinx: 64aa3d35ae(master)
  meta-openembedded: 0435c9e193(master)
  meta-raspberrypi: 490a4441ac(master)
  meta-security: cb6d1c85ee(master)

Squashed patches:
  meta-phosphor: drop systemd 239 patches
  meta-phosphor: mrw-api: use correct install path

Change-Id: I268e2646d9174ad305630c6bbd3fbc1a6105f43d
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/poky/scripts/pythondeps b/poky/scripts/pythondeps
index 590b976..3e13a58 100755
--- a/poky/scripts/pythondeps
+++ b/poky/scripts/pythondeps
@@ -9,7 +9,8 @@
 
 import argparse
 import ast
-import imp
+import importlib
+from importlib import machinery
 import logging
 import os.path
 import sys
@@ -17,10 +18,7 @@
 
 logger = logging.getLogger('pythondeps')
 
-suffixes = []
-for triple in imp.get_suffixes():
-    suffixes.append(triple[0])
-
+suffixes = importlib.machinery.all_suffixes()
 
 class PythonDepError(Exception):
     pass