Add forgotten comma in chrome/android/java/DEPS

The patch https://crrev.com/c/1660848 failed to work, because there was
a comma missing. It was missing before as well, which probably explains
why "+components/embedder_support/android" is duplicated, so I also
removed the duplicate.

Change-Id: I70339f4a884088d25c32c3798536af5886b1f929
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1678479
Auto-Submit: Pavel Shmakov <pshmakov@chromium.org>
Reviewed-by: Ted Choc <tedchoc@chromium.org>
Commit-Queue: Pavel Shmakov <pshmakov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#672501}

chrome/android/java/DEPS

 include_rules = [
-  "-chrome/android/features/keyboard_accessory/internal"
+  "-chrome/android/features/keyboard_accessory/internal",
 
   "+chrome/lib/lifecycle/public",
   "+chrome/lib/image_fetcher/public",
   "+chrome/lib/util/public",
   "+components/embedder_support/android",
-  "+components/embedder_support/android",
   "+components/autofill/android/java/src/org/chromium/components/autofill",
   "+components/background_task_scheduler/android/java/src/org/chromium/components/background_task_scheduler",
   "+components/bookmarks/common/android/java/src/org/chromium/components/bookmarks",