Update android-maven-gradle-plugin to version 2.0
Update android-maven-gradle-plugin to version 2.0

Summary:
Version 1.4.1 of the android-maven-gradle-plugin doesn't generate
any POM dependencies when using api/implementation keywords for
declaring dependencies.

Run `./gradlew -P repositoryUrl=file:///Users/foo/libs uploadArchives`
Verify dependencies listed in POM.

```
<dependencies>
    <dependency>
      <groupId>com.facebook.fresco</groupId>
      <artifactId>fbcore</artifactId>
      <version>1.7.0</version>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>com.facebook.fresco</groupId>
      <artifactId>drawee</artifactId>
      <version>1.7.0</version>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>com.facebook.fresco</groupId>
      <artifactId>imagepipeline</artifactId>
      <version>1.7.0</version>
      <scope>compile</scope>
    </dependency>
  </dependencies>
```

fixes #1991:
Closes https://github.com/facebook/fresco/pull/1995

Differential Revision: D6593470

Pulled By: foghina

fbshipit-source-id: ca97f733f8b729f744f4459a6fdd3e7a4080ff53

xjy2061/NovaImageLoader,s1rius/fresco,s1rius/fresco,facebook/fresco,facebook/fresco,MaTriXy/fresco,s1rius/fresco,MaTriXy/fresco,facebook/fresco,MaTriXy/fresco,xjy2061/NovaImageLoader,xjy2061/NovaImageLoader,facebook/fresco,MaTriXy/fresco,facebook/fresco,MaTriXy/fresco,s1rius/fresco,facebook/fresco,xjy2061/NovaImageLoader,xjy2061/NovaImageLoader