Adjust ndk

.vsts-ci.Windows.yml

@@ -5,9 +5,9 @@ jobs:
     vmImage: 'windows-2019'
 
   variables:
-    ANDROID_NDK_HOME: C:\Microsoft\AndroidNDK64\android-ndk-r15c
+    ANDROID_NDK_HOME: C:\Microsoft\AndroidNDK64\android-ndk-r16b
-    ANDROID_NDK_PATH: C:\Microsoft\AndroidNDK64\android-ndk-r15c
+    ANDROID_NDK_PATH: C:\Microsoft\AndroidNDK64\android-ndk-r16b
-    AndroidNdkDirectory: C:\Microsoft\AndroidNDK64\android-ndk-r15c
+    AndroidNdkDirectory: C:\Microsoft\AndroidNDK64\android-ndk-r16b
 
   steps:
   - task: GitVersion@4