Add missing dependencies to setup_links.

Fixes the following error for Android GN bots when trying
to roll Chromium into WebRTC.

Full logs at:
https://build.chromium.org/p/tryserver.webrtc/builders/android_gn_dbg/builds/13405/steps/generate_build_files/logs/stdio

/b/c/b/android_gn_dbg/src/buildtools/linux64/gn gen //out/Debug --check
  -> returned 1
ERROR at //build/config/android/internal_rules.gni:140:23: Can't load input file.
            deps += [ "${_target_label}__build_config" ]
                      ^-------------------------------
Unable to load:
  /b/c/b/android_gn_dbg/src/third_party/byte_buddy/BUILD.gn
I also checked in the secondary tree for:
  /b/c/b/android_gn_dbg/src/build/secondary/third_party/byte_buddy/BUILD.gn
GN gen failed: 1

BUG=522043
NOTRY=True

Review-Url: https://codereview.webrtc.org/2268343002
Cr-Commit-Position: refs/heads/master@{#13886}

.gitignore

@@ -83,6 +83,7 @@
 /third_party/binutils
 /third_party/boringssl
 /third_party/bouncycastle
+/third_party/byte_buddy
 /third_party/catapult
 /third_party/ced
 /third_party/clang_format
@@ -126,6 +127,7 @@
 /third_party/modp_b64
 /third_party/nss
 /third_party/oauth2
+/third_party/objenesis
 /third_party/ocmock
 /third_party/openh264
 /third_party/openmax_dl

setup_links.py

@@ -93,6 +93,7 @@ if 'android' in target_os:
     'third_party/appurify-python',
     'third_party/ashmem',
     'third_party/bouncycastle',
+    'third_party/byte_buddy',
     'third_party/catapult',
     'third_party/ced',
     'third_party/closure_compiler',
@@ -107,6 +108,7 @@ if 'android' in target_os:
     'third_party/libxml',
     'third_party/mockito',
     'third_party/modp_b64',
+    'third_party/objenesis',
     'third_party/ow2_asm',
     'third_party/requests',
     'third_party/robolectric',