Enable ARM64 support across all Docker build targets

Signed-off-by: Davanum Srinivas <[email protected]>

Author: dims

common.mk

@@ -191,7 +191,7 @@ docker-build: setup-buildx
 docker-build-local: setup-buildx
 	@echo "Building Docker image for $(MODULE_NAME) (local, no remote cache)..."
 	cd $(REPO_ROOT) && docker buildx build \
-		--platform linux/amd64 \
+		--platform $(PLATFORMS) \
 		--network=host \
 		$(DOCKER_EXTRA_ARGS) \
 		--load \