Add uma_quota and uma_ratio to UMA_EnabledCelullarLogUpload fieldtrial testing

testing/variations/fieldtrial_testing_config_android.json

 {
     "AndroidSessionNotifications": [
         {
             "group_name": "Disabled"
         }
     ],
     "AsyncDns": [
         {
             "group_name": "AsyncDnsA"
         },
@@ skipping 373 matching lines @@
             ],
             "group_name": "TokenBinding"
         }
     ],
     "UMA_EnableCellularLogUpload": [
         {
             "group_name": "Enabled_wo_sampling",
             "params": {
                 "Enabled": "true",
                 "Optimize": "true",
-                "Sample_Probability": "100"
+                "Sample_Probability": "100",
+                "Uma_Quota": "204800",
+                "Uma_Ratio": "0.05"
             }
         }
     ],
     "UnifiedMediaPipelineTrial": [
         {
             "group_name": "Enabled"
         }
     ],
     "UpdateMenuItem": [
         {
@@ skipping 73 matching lines @@
     ],
     "use-new-media-cache": [
         {
             "enable_features": [
                 "use-new-media-cache"
             ],
             "group_name": "Enabled"
         }
     ]
 }