Disable warnings related to imports in pylint config

There are several modules that have imports to support various
versions of Python.  Pylint reports the following errors when
run in a version of Python that does not have the module or the
method/class in the module.

  F0401: Unable to import 'module'
  E0611: No name 'name' in module 'module'

Disable these warnings to reduce the noise on the output.

Change-Id: I97e7e2698bccb1e501a45a0869f97f90d54adfb7

.pylintrc

@@ -53,7 +53,7 @@ load-plugins=
 enable=RP0004
 
 # Disable the message(s) with the given id(s).
-disable=R0903,R0912,R0913,R0914,R0915,W0141,C0111,C0103,W0603,W0703,R0911,C0301,C0302,R0902,R0904,W0142,W0212,E1101,E1103,R0201,W0201,W0122,W0232,RP0001,RP0003,RP0101,RP0002,RP0401,RP0701,RP0801
+disable=R0903,R0912,R0913,R0914,R0915,W0141,C0111,C0103,W0603,W0703,R0911,C0301,C0302,R0902,R0904,W0142,W0212,E1101,E1103,R0201,W0201,W0122,W0232,RP0001,RP0003,RP0101,RP0002,RP0401,RP0701,RP0801,F0401,E0611
 
 [REPORTS]