dashboard: add linux-arm64-aws to set of trybots

This change adds linux-arm64-aws to the set of trybots. It also
removes linux-arm and linux-arm64 from the list of builds attempted in
the misc-compile-linuxarm builder.

Updates golang/go#36170
Fixes golang/go#45065

Change-Id: If25fed08e35b2a91c9c9dbbf31701ff5464dc913
Reviewed-on: https://go-review.googlesource.com/c/build/+/303232
Trust: Carlos Amedee <carlos@golang.org>
Run-TryBot: Carlos Amedee <carlos@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
diff --git a/dashboard/builders_test.go b/dashboard/builders_test.go
index 4ab4c5d..15ee139 100644
--- a/dashboard/builders_test.go
+++ b/dashboard/builders_test.go
@@ -98,6 +98,7 @@
 				"linux-amd64",
 				"linux-amd64-race",
 				"linux-arm-aws",
+				"linux-arm64-aws",
 				"misc-compile-darwin",
 				"misc-compile-darwinarm64",
 				"misc-compile-freebsd",
@@ -125,6 +126,7 @@
 				"linux-amd64",
 				"linux-amd64-race",
 				"linux-arm-aws",
+				"linux-arm64-aws",
 				"misc-compile-darwin",
 				"misc-compile-darwinarm64",
 				"misc-compile-freebsd",
@@ -152,6 +154,7 @@
 				"linux-amd64",
 				"linux-amd64-race",
 				"linux-arm-aws",
+				"linux-arm64-aws",
 				"misc-compile-darwin",
 				"misc-compile-darwinarm64", // Starts with Go 1.16.
 				"misc-compile-freebsd",
@@ -184,6 +187,7 @@
 				"linux-amd64",
 				"linux-amd64-race",
 				"linux-arm-aws",
+				"linux-arm64-aws",
 				"misc-compile-darwin",
 				"misc-compile-freebsd",
 				"misc-compile-linuxarm",
@@ -224,6 +228,7 @@
 				"linux-amd64",
 				"linux-amd64-race",
 				"linux-arm-aws",
+				"linux-arm64-aws",
 				"netbsd-amd64-9_0",
 				"openbsd-386-68",
 				"openbsd-amd64-68",