Increase OCC_WAIT_TIMEOUT to 4 minutes

Signed-off-by: David Shaw <dlshaw@us.ibm.com>
Change-Id: I6dbe6248fcadaada7365978cbdc0b42450bf8c7e
diff --git a/lib/open_power_utils.robot b/lib/open_power_utils.robot
index 2a097e0..c6fe106 100644
--- a/lib/open_power_utils.robot
+++ b/lib/open_power_utils.robot
@@ -8,7 +8,7 @@
 *** Variables ***
 ${functional_cpu_count}       ${0}
 ${active_occ_count}           ${0}
-${OCC_WAIT_TIMEOUT}           2 min
+${OCC_WAIT_TIMEOUT}           4 min
 
 *** Keywords ***