Fix cpplint issues

Existing cpplint issues block uploading CLs, fix most of them.

Test: m checkbuild
Change-Id: I3477d388659c93c1ca517c4ad37502e0a71014ad
diff --git a/aosp/apex_handler_android_unittest.cc b/aosp/apex_handler_android_unittest.cc
index 847ccaa..8c58e47 100644
--- a/aosp/apex_handler_android_unittest.cc
+++ b/aosp/apex_handler_android_unittest.cc
@@ -14,8 +14,8 @@
 // limitations under the License.
 //
 
-#include <utility>
 #include <filesystem>
+#include <utility>
 
 #include "update_engine/aosp/apex_handler_android.h"