[Benchmarking] Updated the dimension to ensure homogeneous fleets: Windows 7 Perf

In order to ensure homogeneous fleets, we need to have more specific
dimension values when looking for bots. This set of CLs updated some
existing dimensions, and added the synthetic_product_name values for
dimensions if appropriate.

This CL updated the dimensions for Win 7 Perf:
 - Added synthetic product name 'PowerEdge R210 II (Dell Inc.)';
 - Updated GPU from '102b:0532' to '102b:0532-6.1.7600.16385'.

Please check the link below for the available bots based on the
old/new dimensions:
https://chrome-swarming.appspot.com/botlist?c=id&c=task&c=gpu&c=os&c=pool&c=status&c=synthetic_product_name&d=desc&f=gpu%3A102b%3A0532&f=os%3AWindows-2008ServerR2-SP1&f=cpu%3Ax86-64&f=pool%3Achrome.tests.perf&s=synthetic_product_name

Bug: chromium:996830
Change-Id: I1fc8278887a8e362958205f1cccde11f1f129030
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1867473Reviewed-by: Caleb Rouleau <crouleau@chromium.org>
Commit-Queue: Wenbin Zhang <wenbinzhang@google.com>
Cr-Commit-Position: refs/heads/master@{#707268}

testing/buildbot/chromium.perf.json

@@ -512,9 +512,10 @@
           "can_use_on_swarming_builders": true,
           "dimension_sets": [
             {
-              "gpu": "102b:0532",
+              "gpu": "102b:0532-6.1.7600.16385",
               "os": "Windows-2008ServerR2-SP1",
-              "pool": "chrome.tests.perf"
+              "pool": "chrome.tests.perf",
+              "synthetic_product_name": "PowerEdge R210 II (Dell Inc.)"
             }
           ],
           "expiration": 7200,
@@ -549,9 +550,10 @@
           "can_use_on_swarming_builders": true,
           "dimension_sets": [
             {
-              "gpu": "102b:0532",
+              "gpu": "102b:0532-6.1.7600.16385",
               "os": "Windows-2008ServerR2-SP1",
-              "pool": "chrome.tests.perf"
+              "pool": "chrome.tests.perf",
+              "synthetic_product_name": "PowerEdge R210 II (Dell Inc.)"
             }
           ],
           "expiration": 7200,
@@ -586,9 +588,10 @@
           "can_use_on_swarming_builders": true,
           "dimension_sets": [
             {
-              "gpu": "102b:0532",
+              "gpu": "102b:0532-6.1.7600.16385",
               "os": "Windows-2008ServerR2-SP1",
-              "pool": "chrome.tests.perf"
+              "pool": "chrome.tests.perf",
+              "synthetic_product_name": "PowerEdge R210 II (Dell Inc.)"
             }
           ],
           "expiration": 7200,
@@ -626,9 +629,10 @@
           "can_use_on_swarming_builders": true,
           "dimension_sets": [
             {
-              "gpu": "102b:0532",
+              "gpu": "102b:0532-6.1.7600.16385",
               "os": "Windows-2008ServerR2-SP1",
-              "pool": "chrome.tests.perf"
+              "pool": "chrome.tests.perf",
+              "synthetic_product_name": "PowerEdge R210 II (Dell Inc.)"
             }
           ],
           "expiration": 7200,

tools/perf/core/perf_data_generator.py

@@ -630,9 +630,10 @@ BUILDERS = {
     'platform': 'win',
     'target_bits': 32,
     'dimension': {
-      'pool': 'chrome.tests.perf',
+        'gpu': '102b:0532-6.1.7600.16385',
         'os': 'Windows-2008ServerR2-SP1',
-      'gpu': '102b:0532'
+        'pool': 'chrome.tests.perf',
+        'synthetic_product_name': 'PowerEdge R210 II (Dell Inc.)',
     },
   },
   'Win 7 Nvidia GPU Perf': {