dashboard,env: move iOS builders to GOOS=ios

Updates golang/go#41610

Change-Id: Ie8cb3294da5566e09fc06c01e679b8b773a439cf
Reviewed-on: https://go-review.googlesource.com/c/build/+/259358
Run-TryBot: Elias Naur <mail@eliasnaur.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Elias Naur <mail@eliasnaur.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
diff --git a/dashboard/builders_test.go b/dashboard/builders_test.go
index 2dc25be..22a9271 100644
--- a/dashboard/builders_test.go
+++ b/dashboard/builders_test.go
@@ -399,11 +399,11 @@
 		{b("linux-amd64-nocgo", "mobile"), none},
 
 		// Virtual mobiledevices
-		{b("darwin-arm64-corellium", "go"), isBuilder},
+		{b("ios-arm64-corellium", "go"), isBuilder},
 		{b("android-arm64-corellium", "go"), isBuilder},
 		{b("android-arm-corellium", "go"), isBuilder},
 
-		// Mobile builders that run with GOOS=linux/darwin and have
+		// Mobile builders that run with GOOS=linux/ios and have
 		// a device attached.
 		{b("linux-amd64-androidemu", "mobile"), both},