[Android] Upgrade kotlin version

[Geoffrey Métais]

vlc-android | branch: 3.0.x | Geoffrey Métais <geoffrey.metais at gmail.com> | Mon Jun 11 15:31:21 2018 +0200| [3a6d70be5543995ef9535eaa7eaeefc8f11054d5] | committer: Geoffrey Métais

Upgrade kotlin version

> https://code.videolan.org/videolan/vlc-android/commit/3a6d70be5543995ef9535eaa7eaeefc8f11054d5
---

 build.gradle | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/build.gradle b/build.gradle
index b14b698f7..4fd4f2173 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,8 +1,8 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
     ext.android_plugin_version = '3.0.1'
-    ext.kotlin_version = '1.2.31'
-    ext.kotlinx_version = '0.22.2'
+    ext.kotlin_version = '1.2.41'
+    ext.kotlinx_version = '0.22.5'
     repositories {
         flatDir dirs: "gradle/plugins"
         google()