Updated FAIL01 test: increased RAM requested

Change-Id: I84be847dfb1a49414eeb90a785afd39097a112ad
Signed-off-by: aguilard <e.dah.tid@telefonica.com>
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/robot-systest/testsuite/fail_01-insufficient_resources.robot b/robot-systest/testsuite/fail_01-insufficient_resources.robot
index cd3caef..3cefe5c 100644
--- a/robot-systest/testsuite/fail_01-insufficient_resources.robot
+++ b/robot-systest/testsuite/fail_01-insufficient_resources.robot
@@ -43,7 +43,7 @@
 ${publickey}   %{HOME}/.ssh/id_rsa.pub
 
 # Default memory for dataVM VDU (can be overwritten by VM_MEMORY_OVERRIDE environment variable)
-${default_memory}   200
+${default_memory}   250
 
 # NS launch timeout and polling time
 ${ns_launch_max_wait_time}   5min