cheets_CTS_R: Add wifi-connection logic for DEV version runner.

A waived case recently added does not work without active Wifi
connection. This CL copies the precondition for enabling Wifi
from CtsNetTestCases. The parameters are filled by moblab when
the test is run.

BUG=b:192324752
TEST=to be tested on 3PL moblab

Change-Id: Ib17ba8bd361a3a31ce28a4399c90745ae443564e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/autotest/+/3062158
Commit-Queue: Kazuhiro Inaba <kinaba@chromium.org>
Commit-Queue: Jiyoun Ha <jiyounha@chromium.org>
Tested-by: Kazuhiro Inaba <kinaba@chromium.org>
Auto-Submit: Kazuhiro Inaba <kinaba@chromium.org>
Reviewed-by: Jiyoun Ha <jiyounha@chromium.org>
(cherry picked from commit 9acacd3c4f4e58bc4681b0cabce88d9840c6d434)
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/autotest/+/3067107
diff --git a/server/site_tests/cheets_CTS_R/control.arm.waivers b/server/site_tests/cheets_CTS_R/control.arm.waivers
index 654a87d..1f6ec1a 100644
--- a/server/site_tests/cheets_CTS_R/control.arm.waivers
+++ b/server/site_tests/cheets_CTS_R/control.arm.waivers
@@ -29,6 +29,7 @@
         target_plan='waivers',
         load_waivers=False,
         bundle='arm',
+        precondition_commands=['/usr/local/autotest/cros/scripts/wifi connect %s %s' % (ssid, wifipass), 'android-sh -c \'dumpsys wifi transports -eth\''],
         retry_manual_tests=True,
         warn_on_test_retry=False,
         uri='gs://chromeos-partner-gts/R/android-cts-7588503-linux_x86-arm.zip',
diff --git a/server/site_tests/cheets_CTS_R/control.x86.waivers b/server/site_tests/cheets_CTS_R/control.x86.waivers
index 6771c34..2d8c77c 100644
--- a/server/site_tests/cheets_CTS_R/control.x86.waivers
+++ b/server/site_tests/cheets_CTS_R/control.x86.waivers
@@ -29,6 +29,7 @@
         target_plan='waivers',
         load_waivers=False,
         bundle='x86',
+        precondition_commands=['/usr/local/autotest/cros/scripts/wifi connect %s %s' % (ssid, wifipass), 'android-sh -c \'dumpsys wifi transports -eth\''],
         retry_manual_tests=True,
         warn_on_test_retry=False,
         uri='gs://chromeos-partner-gts/R/android-cts-7588503-linux_x86-x86.zip',