travis: Add a travis profile for meson dri drivers

Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>

.travis.yml

@@ -396,7 +396,7 @@ matrix:
     - env:
         - LABEL="meson Vulkan"
         - BUILD=meson
-        - MESON_OPTIONS=""
+        - MESON_OPTIONS="-Ddri-drivers="
       addons:
         apt:
           sources:
@@ -411,6 +411,20 @@ matrix:
             - libexpat1-dev
             - libelf-dev
             - python3-pip
+    - env:
+        - LABEL="meson loaders/classic DRI"
+        - BUILD=meson
+        - MESON_OPTIONS="-Dvulkan-drivers="
+      addons:
+        apt:
+          packages:
+            - xz-utils
+            - x11proto-xf86vidmode-dev
+            - libexpat1-dev
+            - libx11-xcb-dev
+            - libxdamage-dev
+            - libxfixes-dev
+            - python3-pip
 
 install:
   - pip install --user mako