Revert "python: remove no longer needed patch"

distutils-command-build.py.patch is still needed...

This reverts commit cb4b29825b.

packages/python/distutils-command-build.py.patch

@@ -0,0 +1,11 @@
+--- ./Lib/distutils/command/build.py.orig	2019-11-19 23:19:08.878782120 +0000
++++ ./Lib/distutils/command/build.py	2019-11-19 23:19:18.410915201 +0000
+@@ -118,7 +118,7 @@
+ 
+         if self.executable is None and sys.executable:
+             self.executable = os.path.normpath(sys.executable)
+-
++        self.parallel = 1
+         if isinstance(self.parallel, str):
+             try:
+                 self.parallel = int(self.parallel)