build: Update version of compile SDK and build tools

Change-Id: Id2e2f944b9cbc4a374714b1173a5aef349986bf9
diff --git a/.vagrant/Vagrantfile b/.vagrant/Vagrantfile
index 41ef2df..3b59f65 100644
--- a/.vagrant/Vagrantfile
+++ b/.vagrant/Vagrantfile
@@ -8,8 +8,8 @@
 CRYSTAX_NDK_VERSION=10.3.1
 
 SDK_VERSION=24.4.1
-BUILD_TOOLS_VERSION=21.1.2
-COMPILE_SDK_VERSION=21
+BUILD_TOOLS_VERSION=23.0.2
+COMPILE_SDK_VERSION=23
 
 sudo apt-get install -y build-essential git openjdk-7-jdk unzip
 sudo apt-get install -y lib32stdc++6 lib32z1 lib32z1-dev