Adapt android.packagingOptions for emulated tests

[alex-iotiq]

To avoid build errors like this:

Execution failed for task ':app:mergeDebugJavaResource'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
   > More than one file was found with OS independent path 'META-INF/LICENSE.md'.

You have to add exclude options for the files mentioned below to build.gradle:

android.packagingOptions {
    exclude 'META-INF/DEPENDENCIES'
    exclude 'META-INF/LICENSE.md'
    exclude 'META-INF/NOTICE.md'
    exclude 'META-INF/jing-copying.html'
    exclude 'META-INF/LICENSE-notice.md'
}