Update Android camera links to official documentation (#3987)

Author: saudsami

en-US/dita/RTC-NG/config/keys-rtc-ng-links-android.ditamap

@@ -41,14 +41,14 @@
     </topichead>
     <topichead navtitle="External">
         <keydef keys="camera1-link" 
-            href="https://developer.android.google.cn/reference/android/hardware/Camera#open(int)" 
+            href="https://developer.android.com/reference/android/hardware/Camera#open(int)" 
             scope="external">       
             <topicmeta>
                 <linktext>Camera.open()</linktext>
             </topicmeta>
         </keydef>
         <keydef keys="camera2-link" 
-            href="https://developer.android.google.cn/reference/android/hardware/camera2/CameraManager?hl=en#getCameraIdList" 
+            href="https://developer.android.com/reference/android/hardware/camera2/CameraManager?hl=en#getCameraIdList()" 
             scope="external">
             <topicmeta>
                 <linktext>CameraManager.getCameraIdList()</linktext>