[Android] Upgrade AGP to v3.1.3

[Geoffrey Métais]

vlc-android | branch: master | Geoffrey Métais <geoffrey.metais at gmail.com> | Fri Jun  8 10:41:02 2018 +0200| [1ea0ff2c229954045705fc3858ab00e002b85260] | committer: Geoffrey Métais

Upgrade AGP to v3.1.3

> https://code.videolan.org/videolan/vlc-android/commit/1ea0ff2c229954045705fc3858ab00e002b85260
---

 build.gradle | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.gradle b/build.gradle
index f2b70890d..0f7e3c482 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,6 +1,6 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
-    ext.android_plugin_version = '3.1.2'
+    ext.android_plugin_version = '3.1.3'
     ext.kotlin_version = '1.2.41'
     ext.kotlinx_version = '0.22.2'
     repositories {