Fix typo in memory-infra testing config.

testing/buildbot/chromium.android.fyi.json

 {
   "Android Tests (trial)(dbg)": {
     "gtest_tests": [
       {
         "swarming": {
           "can_use_on_swarming_builders": false
         },
         "test": "blink_heap_unittests"
       },
       {
@@ skipping 328 matching lines @@
   "Memory Infra Tester": {
     "isolated_scripts": [
       {
         "args": [
           "system_health.memory_mobile",
           "-v",
           "--upload-results",
           "--output-format=chartjson",
           "--browser=android-chromium",
           "--story-filter=load:search:google",
-          "--extra-browser-args=\"--enable-heap-profiler\""
+          "--extra-browser-args=\"--enable-heap-profiling\""
         ],
         "isolate_name": "telemetry_perf_tests",
         "name": "system_health.memory_mobile",
         "override_compile_targets": [
           "telemetry_perf_tests"
         ],
         "swarming": {
           "can_use_on_swarming_builders": true,
           "dimension_sets": [
             {
@@ skipping 2594 matching lines @@
               "device_type": "gce_x86"
             }
           ],
           "hard_timeout": 960,
           "shards": 1
         }
       }
     ]
   }
 }