Make android project compile with new gradle and build tools

Summary:
If this is not done. I get
```
Could not find aapt2-proto.jar (com.android.tools.build:aapt2-proto:0.3.1).
Searched in the following locations:
    https://jcenter.bintray.com/com/android/tools/build/aapt2-proto/0.3.1/aapt2-proto-0.3.1.jar
```
I follwed the suggestion given on [stack overflow](https://stackoverflow.com/questions/52944598/could-not-find-aapt2-proto-jar)

Reviewed By: jknoxville

Differential Revision: D12839581

fbshipit-source-id: aa02620c7e4c52899b2c2c4805fd8a6f168d946a

build.gradle

@@ -1,7 +1,7 @@
 buildscript {
     repositories {
-        jcenter()
         google()
+        jcenter()
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.2.1'