power_LoadTest: update credentials

Update credentials to match new account settings.

BUG=none
TEST=run power_LoadTest and verify that it is able to log in
successfully as part of the test run.

Original-Change-Id: If14af7f5ed6228e5240b3f34bd2d856874297b52
Reviewed-on: https://chromium-review.googlesource.com/187388
Reviewed-by: Bryan Freed <bfreed@chromium.org>
Commit-Queue: Sameer Nanda <snanda@chromium.org>
Tested-by: Sameer Nanda <snanda@chromium.org>
(cherry picked from commit 1ce77c09e27cd4dbd0cfbdb5b72e494d850961d5)

Change-Id: Id2dcf1dfde7b3af7030ed832e1e77ea36e115882
Reviewed-on: https://chromium-review.googlesource.com/188675
Reviewed-by: Sameer Nanda <snanda@chromium.org>
Commit-Queue: Sameer Nanda <snanda@chromium.org>
Tested-by: Sameer Nanda <snanda@chromium.org>
diff --git a/client/site_tests/power_LoadTest/power_LoadTest.py b/client/site_tests/power_LoadTest/power_LoadTest.py
index d63e0b1..ef0f174 100755
--- a/client/site_tests/power_LoadTest/power_LoadTest.py
+++ b/client/site_tests/power_LoadTest/power_LoadTest.py
@@ -27,7 +27,7 @@
 class power_LoadTest(cros_ui_test.UITest):
     """test class"""
     version = 2
-    _creds = 'power.loadtest@gmail.com:power_LoadTest'
+    _creds = 'power.loadtest@gmail.com:power_LoadTest1'
 
 
     def start_authserver(self):