Move suites definition from .travis.yml to .kitchen.yml

Change-Id: I2b92249d50653d985b7e72ebf28334ef456091f9
diff --git a/.travis.yml b/.travis.yml
index 4daa25c..9cb9872 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,8 +17,8 @@
   - bundle install
 
 env:
-    - PLATFORM=trevorj/salty-whales:trusty SUITE=apache_server_php5
-    - PLATFORM=trevorj/salty-whales:xenial SUITE=apache_server_php7
+    - PLATFORM=trevorj/salty-whales:trusty PHP_VERSION=php5
+    - PLATFORM=trevorj/salty-whales:xenial PHP_VERSION=php7
 
 
 before_script: