Fix comment describing how to use finalize_apk_action.gypi

The existing comment references the old name of finalize_apk_action.gypi, this
updates it to its current name.

This also reorders the input list to be alphabetized.

Review URL: https://codereview.chromium.org/899063002

Cr-Commit-Position: refs/heads/master@{#314656}

build/android/finalize_apk_action.gypi

@@ -12,7 +12,7 @@
 #      'input_apk_path': 'relative/path/to/input.apk',
 #      'output_apk_path': 'relative/path/to/output.apk',
 #    },
-#    'includes': [ '../../build/android/finalize_apk.gypi' ],
+#    'includes': [ '../../build/android/finalize_apk_action.gypi' ],
 #  },
 #
 
@@ -34,8 +34,8 @@
     ],
   },
   'inputs': [
-    '<(DEPTH)/build/android/gyp/util/build_utils.py',
     '<(DEPTH)/build/android/gyp/finalize_apk.py',
+    '<(DEPTH)/build/android/gyp/util/build_utils.py',
     '<(keystore_path)',
     '<(input_apk_path)',
   ],