common/travis: add consistency check on travis runs

.travis.yml

@@ -10,7 +10,8 @@ env:
         - PATH=$PATH:$HOME/bin
 
     matrix:
-        - XLINT=1
+        - ACTION=xlint
+        - ACTION=consistency-check
         - ARCH=x86_64 BOOTSTRAP=x86_64
         - ARCH=i686 BOOTSTRAP=i686
         - ARCH=armv6hf BOOTSTRAP=x86_64
@@ -24,6 +25,7 @@ before_script:
     - common/travis/fetch_upstream.sh
     - common/travis/changed_templates.sh
     - common/travis/xlint.sh
+    - common/travis/consistency_check.sh
     - common/travis/bootstrap.sh $BOOTSTRAP
 
 script: