patchpanel: run clang-format on all files

Also enable the clang_format_presubmit check.

Command used:
clang-format -i -style=file $(find patchpanel -name '*.h' -o -name '*.cc')

BUG=b:166166797
TEST=CQ passes

Change-Id: I344cd4602a68394ba5adc5e5d58d2703eea978dc
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform2/+/2399204
Tested-by: Tom Hughes <tomhughes@chromium.org>
Reviewed-by: Hugo Benichi <hugobenichi@google.com>
Commit-Queue: Tom Hughes <tomhughes@chromium.org>
Auto-Submit: Tom Hughes <tomhughes@chromium.org>
diff --git a/patchpanel/main.cc b/patchpanel/main.cc
index 91f1cd2..4eb3144 100644
--- a/patchpanel/main.cc
+++ b/patchpanel/main.cc
@@ -71,6 +71,6 @@
 
   LOG(INFO) << "Starting patchpanel manager";
   patchpanel::Manager manager(std::move(adb_proxy), std::move(mcast_proxy),
-                                std::move(nd_proxy));
+                              std::move(nd_proxy));
   return manager.Run();
 }