Set number of shards for telemetry_unittests to be 2

testing/buildbot/chromium.fyi.json

Index: testing/buildbot/chromium.fyi.json
diff --git a/testing/buildbot/chromium.fyi.json b/testing/buildbot/chromium.fyi.json
index 2d3b5c1138de36fa50dc54329c0c06dd076f5f78..a7daac9466d26f8780b8289fff6de2bc114ace89 100644
--- a/testing/buildbot/chromium.fyi.json
+++ b/testing/buildbot/chromium.fyi.json
@@ -3471,7 +3471,9 @@
           "telemetry_unittests_run"
         ],
         "swarming": {
-          "can_use_on_swarming_builders": true
+          "can_use_on_swarming_builders": true,
+          "hard_timeout": 960,
+          "shards": 2
         }
       }
     ]
@@ -5980,7 +5982,9 @@
           "telemetry_unittests_run"
         ],
         "swarming": {
-          "can_use_on_swarming_builders": true
+          "can_use_on_swarming_builders": true,
+          "hard_timeout": 960,
+          "shards": 2
         }
       }
     ],
@@ -12075,7 +12079,9 @@
           "telemetry_unittests_run"
         ],
         "swarming": {
-          "can_use_on_swarming_builders": true
+          "can_use_on_swarming_builders": true,
+          "hard_timeout": 960,
+          "shards": 2
         }
       }
     ],
@@ -12281,7 +12287,9 @@
           "telemetry_unittests_run"
         ],
         "swarming": {
-          "can_use_on_swarming_builders": true
+          "can_use_on_swarming_builders": true,
+          "hard_timeout": 960,
+          "shards": 2
         }
       }
     ],
@@ -12640,7 +12648,9 @@
           "telemetry_unittests_run"
         ],
         "swarming": {
-          "can_use_on_swarming_builders": true
+          "can_use_on_swarming_builders": true,
+          "hard_timeout": 960,
+          "shards": 2
         }
       }
     ],
@@ -12840,7 +12850,9 @@
           "telemetry_unittests_run"
         ],
         "swarming": {
-          "can_use_on_swarming_builders": true
+          "can_use_on_swarming_builders": true,
+          "hard_timeout": 960,
+          "shards": 2
         }
       }
     ],