bugfix/compability issue of config files is fixed

config files of sample app1 and 2 are modified in a way to consider
mobile processing unit (even their scenarios do not have task execution
on the mobile devices)

This issue is reported on EdgeCloudSim group:
https://groups.google.com/d/msg/edgecloudsim/7dfvcUdPIak/jEQg2OK-AwAJ

scripts/sample_app2/config/default_config.properties

@@ -24,6 +24,12 @@ mips_for_cloud_vm=100000
 ram_for_cloud_vm=32000
 storage_for_cloud_vm=1000000
 
+#mobile devices has no processing unit in this scenario
+core_for_mobile_vm=0
+mips_for_mobile_vm=0
+ram_for_mobile_vm=0
+storage_for_mobile_vm=0
+
 #use ',' for multiple values 
 orchestrator_policies=NETWORK_BASED,UTILIZATION_BASED,HYBRID