[Autotest]Correcting campign file name in softAP stress

Bug: 36654118
Test: None
Change-Id: Ia5259d2c7a8b883a7b7199e6b684440091765310
Reviewed-on: https://chromium-review.googlesource.com/486949
Commit-Ready: Bindu Mahadev <bmahadev@chromium.org>
Tested-by: Bindu Mahadev <bmahadev@chromium.org>
Reviewed-by: Bindu Mahadev <bmahadev@chromium.org>
diff --git a/server/site_tests/android_ACTS/control.softApStress b/server/site_tests/android_ACTS/control.softApStress
index cccca0e..a76c17c 100644
--- a/server/site_tests/android_ACTS/control.softApStress
+++ b/server/site_tests/android_ACTS/control.softApStress
@@ -17,7 +17,7 @@
     job.run_test('android_ACTS',
                  testbed=hosts.create_testbed(machine),
                  config_file='softApStress.config',
-                 test_file='softApStress',
+                 test_file='wifi_softApStress',
                  additional_cmd_line_params="-r 10000",
                  acts_timeout=72000)