[android] fix snapshot builds

Author: Guardiola31337

platform/android/MapboxGLAndroidSDK/gradle.properties

@@ -1,5 +1,5 @@
 GROUP=com.mapbox.mapboxsdk
-VERSION_NAME=5.2.0-beta-SNAPSHOT
+VERSION_NAME=5.2.0-SNAPSHOT
 
 POM_DESCRIPTION=Mapbox GL Android SDK
 POM_URL=https://github.com/mapbox/mapbox-gl-native
@@ -17,4 +17,5 @@ POM_PACKAGING=aar
 
 # Only build native dependencies for the current ABI
 # See https://code.google.com/p/android/issues/detail?id=221098#c20
-android.buildOnlyTargetAbi=true
+android.buildOnlyTargetAbi=true
+