dts: extend meson fast tests timeout

The current timeout is insufficient for running
fast tests on some systems which are running DTS.
This timeout extension resolves the issue for the
systems in question.

Signed-off-by: Patrick Robb <[email protected]>

Author: PatrickRobbIOL

dts/tests/TestSuite_smoke_tests.py

@@ -59,7 +59,7 @@ def test_unit_tests(self) -> None:
             Run the ``fast-tests`` unit test suite through meson.
         """
         self.sut_node.main_session.send_command(
-            f"meson test -C {self.dpdk_build_dir_path} --suite fast-tests -t 60",
+            f"meson test -C {self.dpdk_build_dir_path} --suite fast-tests -t 120",
             480,
             verify=True,
             privileged=True,