ci: Compile DPDK in non developer mode.

This new option [1] has been added to remove checks [2][3] that only
a DPDK developer cares about.

1: https://git.dpdk.org/dpdk/commit/?id=bc4617433845
2: https://git.dpdk.org/dpdk/commit/?id=d317f7ebd484
3: https://git.dpdk.org/dpdk/commit/?id=720dfda4551e

Signed-off-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Ian Stokes <ian.stokes@intel.com>

.ci/linux-build.sh

@@ -162,6 +162,10 @@ function install_dpdk()
     # Disable building DPDK unit tests. Not needed for OVS build or tests.
     DPDK_OPTS="$DPDK_OPTS -Dtests=false"
 
+    # Disable DPDK developer mode, this results in less build checks and less
+    # meson verbose outputs.
+    DPDK_OPTS="$DPDK_OPTS -Ddeveloper_mode=disabled"
+
     # Install DPDK using prefix.
     DPDK_OPTS="$DPDK_OPTS --prefix=$(pwd)/build"