dashboard: make darwin-amd64-aws race builder actually run race

race builders must have a name ending in -race. Switch the name to match
that rule.

For golang/go#48945.

Change-Id: I69caf2e4d2e059a666d14dfe325a275e467488de
Reviewed-on: https://go-review.googlesource.com/c/build/+/432859
Run-TryBot: Michael Pratt <[email protected]>
TryBot-Result: Gopher Robot <[email protected]>
Reviewed-by: Cherry Mui <[email protected]>

Author: prattmic

dashboard/builders.go

@@ -2373,7 +2373,7 @@ func init() {
 		buildsRepo:     onlyGo,
 	})
 	addBuilder(BuildConfig{
-		Name:           "darwin-amd64-race-aws",
+		Name:           "darwin-amd64-aws-race",
 		HostType:       "host-darwin-amd64-12-aws",
 		distTestAdjust: macTestPolicy,
 		buildsRepo:     onlyGo,