selftests: mlxsw: Check devlink device before running test

The scale test for Spectrum-2 should only be invoked for Spectrum-2.
Skip the test otherwise.

Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

tools/testing/selftests/drivers/net/mlxsw/spectrum-2/resource_scale.sh

@@ -8,6 +8,11 @@ source $lib_dir/lib.sh
 source $lib_dir/tc_common.sh
 source $lib_dir/devlink_lib.sh
 
+if [ "$DEVLINK_VIDDID" != "15b3:cf6c" ]; then
+	echo "SKIP: test is tailored for Mellanox Spectrum-2"
+	exit 1
+fi
+
 current_test=""
 
 cleanup()