Enable pylintrc to match existing code.

The existing code uses 2 space indents in python. This pylintrc matches
the internal Google Python style but with 2 spaces instead of 4.

Bug: None
Test: pylint
Change-Id: I4ad7e34ce58c8578ca9703a9fdcecd7854953ef8
diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
index 6b7fd71..706dfa8 100644
--- a/PREUPLOAD.cfg
+++ b/PREUPLOAD.cfg
@@ -1,2 +1,3 @@
 [Builtin Hooks]
 clang_format = true
+pylint = true