Revert "cleanup: remove arm64 build workaround"

Makefile

@@ -189,6 +189,9 @@ container-all: azuredisk-windows
 ifeq ($(CLOUD), AzureStackCloud)
 	docker run --privileged --name buildx_buildkit_container-builder0 -d --mount type=bind,src=/etc/ssl/certs,dst=/etc/ssl/certs moby/buildkit:latest || true
 endif
+	# enable qemu for arm64 build
+	# https://github.com/docker/buildx/issues/464#issuecomment-741507760
+	docker run --privileged --rm tonistiigi/binfmt --uninstall qemu-aarch64
 	docker run --rm --privileged tonistiigi/binfmt --install all
 	for arch in $(ALL_ARCH.linux); do \
 		ARCH=$${arch} $(MAKE) azuredisk; \