nvmet: Fix nvmet_is_port_enabled indentation

Remove extra tab.

Signed-off-by: Israel Rukshin <israelr@nvidia.com>
Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

drivers/nvme/target/configfs.c

@@ -45,7 +45,7 @@ static bool nvmet_is_port_enabled(struct nvmet_port *p, const char *caller)
 {
 	if (p->enabled)
 		pr_err("Disable port '%u' before changing attribute in %s\n",
-				le16_to_cpu(p->disc_addr.portid), caller);
+		       le16_to_cpu(p->disc_addr.portid), caller);
 	return p->enabled;
 }