[Android] Upgrade Kotlin to v 1.2.40

[Geoffrey Métais]

vlc-android | branch: master | Geoffrey Métais <geoffrey.metais at gmail.com> | Wed Apr 25 13:16:16 2018 +0200| [3ee18bc100c93470ede8957c579dff5350409dad] | committer: Geoffrey Métais

Upgrade Kotlin to v 1.2.40

> https://code.videolan.org/videolan/vlc-android/commit/3ee18bc100c93470ede8957c579dff5350409dad
---

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

diff --git a/build.gradle b/build.gradle
index c0dbd355a..ed0efe41a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,7 @@
 // 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.kotlin_version = '1.2.31'
+    ext.kotlin_version = '1.2.40'
     ext.kotlinx_version = '0.22.2'
     repositories {
         flatDir dirs: "gradle/plugins"