stm32f429i-disc1: Increase test runner timeout

A few longer tests have made their way into the codebase. Some tests run
for a few seconds before emitting any test output. Increase the default
test output timeout for the python test runner so these tests are given
enough time to run. 5 seconds is a reasonable timeout for cases where a
test locks up.

Fixed: 217
Change-Id: Ia79fa7177e0c1e623de9c596bdde5acba2e3cbb4
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/14301
Reviewed-by: Keir Mierle <keir@google.com>
Commit-Queue: Armando Montanez <amontanez@google.com>

targets/stm32f429i-disc1/py/stm32f429i_disc1_utils/unit_test_runner.py

diff --git a/targets/stm32f429i-disc1/py/stm32f429i_disc1_utils/unit_test_runner.py b/targets/stm32f429i-disc1/py/stm32f429i_disc1_utils/unit_test_runner.py
index b49514f..d290198 100755
--- a/targets/stm32f429i-disc1/py/stm32f429i_disc1_utils/unit_test_runner.py
+++ b/targets/stm32f429i-disc1/py/stm32f429i_disc1_utils/unit_test_runner.py
@@ -83,7 +83,7 @@
                         ' with target device')
     parser.add_argument('--test-timeout',
                         type=float,
-                        default=2.0,
+                        default=5.0,
                         help='Maximum communication delay in seconds before a '
                         'test is considered unresponsive and aborted')
     parser.add_argument('--verbose',