ci: Make sure that we build the piglit dmabuf tests.

Force the option rather than relying on autodetection -- ARM runners were
apparently finding the necessary deps, but the x86 rootfs (radeonsi, iris)
and x86_test-gl container (i915g) were not.

Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11834>

.gitlab-ci/container/lava_build.sh

@@ -75,6 +75,7 @@ apt-get install -y --no-remove \
                    debootstrap \
                    git \
                    glslang-tools \
+                   libdrm-dev \
                    libegl1-mesa-dev \
                    libgbm-dev \
                    libgles2-mesa-dev \
@@ -85,6 +86,7 @@ apt-get install -y --no-remove \
                    libwaffle-dev \
                    libwayland-dev \
                    libx11-xcb-dev \
+                   libxcb-dri2-0-dev \
                    libxkbcommon-dev \
                    patch \
                    python3-distutils \
@@ -136,7 +138,7 @@ mv /deqp /lava-files/rootfs-${DEBIAN_ARCH}/.
 
 
 ############### Build piglit
-. .gitlab-ci/container/build-piglit.sh
+PIGLIT_OPTS="-DPIGLIT_BUILD_DMA_BUF_TESTS=ON" . .gitlab-ci/container/build-piglit.sh
 mv /piglit /lava-files/rootfs-${DEBIAN_ARCH}/.