Added myself to WATCHLIST for audio_mixer and audio_processing.

BUG=None
NOTRY=true

Review-Url: https://codereview.webrtc.org/2691233003
Cr-Commit-Position: refs/heads/master@{#16613}
diff --git a/WATCHLISTS b/WATCHLISTS
index 66eaeda..97c83dd 100644
--- a/WATCHLISTS
+++ b/WATCHLISTS
@@ -154,8 +154,11 @@
     'neteq': ['audio-team@agora.io',
               'henrik.lundin@webrtc.org',
               'minyue@webrtc.org'],
-    'audio_mixer': ['henrik.lundin@webrtc.org'],
-    'audio_processing': ['aluebs@webrtc.org',
+    'audio_mixer': ['aleloi@webrtc.org',
+                    'henrik.lundin@webrtc.org'
+    ],
+    'audio_processing': ['aleloi@webrtc.org',
+                         'aluebs@webrtc.org',
                          'andrew@webrtc.org',
                          'audio-team@agora.io',
                          'bjornv@webrtc.org',