cmd/buildlet: update Makefile's list of all targets

Remove the old compressed Darwin one that's no longer used and add
windows-arm.

Change-Id: I342d3132888090b80a9332d17307f1c6e7ef57c8
Reviewed-on: https://go-review.googlesource.com/c/build/+/166378
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
diff --git a/cmd/buildlet/Makefile b/cmd/buildlet/Makefile
index 91fb03e..3085267 100644
--- a/cmd/buildlet/Makefile
+++ b/cmd/buildlet/Makefile
@@ -28,7 +28,7 @@
 	GOOS=solaris GOARCH=amd64 go install golang.org/x/build/cmd/buildlet
 
 # buildlet.all is compiles & uploads all targets.
-buildlet.all: FORCE buildlet.darwin-amd64 buildlet.darwin-amd64.gz buildlet.freebsd-amd64 buildlet.linux-amd64 buildlet.netbsd-amd64 buildlet.openbsd-amd64 buildlet.openbsd-386 buildlet.plan9-386 buildlet.windows-amd64 buildlet.linux-arm buildlet.linux-arm-arm5 buildlet.linux-arm64 buildlet.linux-mips buildlet.linux-mipsle buildlet.linux-mips64 buildlet.linux-mips64le buildlet.linux-ppc64 buildlet.linux-ppc64le buildlet.linux-s390x buildlet.solaris-amd64
+buildlet.all: FORCE buildlet.darwin-amd64 buildlet.freebsd-amd64 buildlet.linux-amd64 buildlet.netbsd-amd64 buildlet.openbsd-amd64 buildlet.openbsd-386 buildlet.plan9-386 buildlet.windows-amd64 buildlet.windows-arm buildlet.linux-arm buildlet.linux-arm-arm5 buildlet.linux-arm64 buildlet.linux-mips buildlet.linux-mipsle buildlet.linux-mips64 buildlet.linux-mips64le buildlet.linux-ppc64 buildlet.linux-ppc64le buildlet.linux-s390x buildlet.solaris-amd64
 	echo "done"
 
 buildlet.darwin-amd64: FORCE
@@ -67,6 +67,10 @@
 	go install golang.org/x/build/cmd/upload
 	upload --verbose --osarch=$@ --file=go:golang.org/x/build/cmd/buildlet --public --cacheable=false go-builder-data/$@
 
+buildlet.windows-arm: FORCE buildlet_windows.go
+	go install golang.org/x/build/cmd/upload
+	upload --verbose --osarch=$@ --file=go:golang.org/x/build/cmd/buildlet --public --cacheable=false go-builder-data/$@
+
 buildlet.windows-amd64: FORCE buildlet_windows.go
 	go install golang.org/x/build/cmd/upload
 	upload --verbose --osarch=$@ --file=go:golang.org/x/build/cmd/buildlet --public --cacheable=false go-builder-data/$@