dashboard: test linux-mips* for the misc-compile trybot

Change-Id: I6b0965ba621f6b12d62da9c997d1d27e5e695d72
Reviewed-on: https://go-review.googlesource.com/18688
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

dashboard/builders.go

diff --git a/dashboard/builders.go b/dashboard/builders.go
index 0d83fef..c867c2d 100644
--- a/dashboard/builders.go
+++ b/dashboard/builders.go
@@ -329,7 +329,7 @@
 		env:         []string{"GOROOT_BOOTSTRAP=/go1.4"},
 		allScriptArgs: []string{
 			// Filtering pattern to buildall.bash:
-			"^(linux-arm64|linux-ppc64|linux-ppc64le|nacl-arm|plan9-amd64|solaris-amd64|netbsd-386|netbsd-amd64|netbsd-arm|freebsd-arm|darwin-386)$",
+			"^(linux-arm64|linux-ppc64|linux-ppc64le|linux-mips.*|nacl-arm|plan9-amd64|solaris-amd64|netbsd-386|netbsd-amd64|netbsd-arm|freebsd-arm|darwin-386)$",
 		},
 	})
 	addBuilder(BuildConfig{