Partially revert "Disable source file checks for src/third_party repos and reorder source file hooks"

This partially reverts commit e37fe1a907de01f11ae6523c890333b4a30e0513.
Source file checks are re-enabled for third party repos, but keep the reordering of the source file hooks.

BUG=None
TEST=uploaded this change

Change-Id: Iaaeb5cac871d69c4193b4b4e91cc820dfa61fe07
1 file changed
tree: 12e5c95f5dfb1e4bbb43cd9a2a38ac403a7c4303
  1. checkpatch.pl
  2. pre-upload.py