Revert "remove get-operator-crds target from Makefile"

This reverts commit 8d42815.

Makefile

@@ -51,6 +51,7 @@ check-language:
 
 generate:
 	$(MAKE) gen-semaphore-yaml
+	$(MAKE) get-operator-crds
 	$(MAKE) -C api gen-files
 	$(MAKE) -C libcalico-go gen-files
 	$(MAKE) -C felix gen-files
@@ -63,6 +64,16 @@ gen-manifests: bin/helm
 		CALICO_VERSION=$(CALICO_VERSION) \
 		./generate.sh
 
+# Get operator CRDs from the operator repo, OPERATOR_BRANCH must be set
+get-operator-crds: var-require-all-OPERATOR_BRANCH
+	@echo ================================================================
+	@echo === Pulling new operator CRDs from branch $(OPERATOR_BRANCH) ===
+	@echo ================================================================
+	cd ./charts/tigera-operator/crds/ && \
+	for file in operator.tigera.io_*.yaml; do echo "downloading $$file from operator repo" && curl -fsSL https://raw.githubusercontent.com/tigera/operator/$(OPERATOR_BRANCH)/pkg/crds/operator/$${file%_crd.yaml}.yaml -o $${file}; done
+	cd ./manifests/ocp/ && \
+	for file in operator.tigera.io_*.yaml; do echo "downloading $$file from operator repo" && curl -fsSL https://raw.githubusercontent.com/tigera/operator/$(OPERATOR_BRANCH)/pkg/crds/operator/$${file%_crd.yaml}.yaml -o $${file}; done
+
 gen-semaphore-yaml:
 	cd .semaphore && ./generate-semaphore-yaml.sh