Fixed that RTCCameraPreviewView did not rotate the video on device rotation.

BUG=webrtc:6749

Review-Url: https://codereview.webrtc.org/2798993002
Cr-Commit-Position: refs/heads/master@{#17742}
diff --git a/AUTHORS b/AUTHORS
index e13033e..627eab7 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -2,6 +2,7 @@
 # Name or Organization <email address>
 
 Adam Fedor <adam.fedor@gmail.com>
+Akshay Shah <meetakshay99@gmail.com>
 Alexander Brauckmann <a.brauckmann@gmail.com>
 Alexandre Gouaillard <agouaillard@gmail.com>
 Andrew MacDonald <andrew@webrtc.org>