Bump pwrmgmt timeout to 1200

Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org>
diff --git a/lava-submit.py b/lava-submit.py
index 0012cce..ff9315e 100755
--- a/lava-submit.py
+++ b/lava-submit.py
@@ -29,7 +29,7 @@
     'perf': 800,
     'phpinfo': 800,
     'phpmysql': 800,
-    'pwrmgmt': 800,
+    'pwrmgmt': 1200,
     'sdkhelloc': 800,
     'sdkhellocxx': 800,
     'smoke-tests-basic': 1200,