M1: vendored sha2/md5 (OpenBSD 8.0) + endian/swap compat; module builds green

lab/cloud-init/user-data.tmpl

@@ -14,6 +14,7 @@ chpasswd:
     - name: root
       password: "@ROOT_PASS@"
       type: text
+package_update: true
 packages: @LAB_PACKAGES@
 runcmd:
   - echo 'net.ipv4.ip_forward=1' > /etc/sysctl.d/00-pflab.conf