lib/lib.sh: lower register_networkd_reloader() max (spin time) to match sysfs wait timeout

Author: Dinko Dermendzhiev

lib/lib.sh

@@ -627,7 +627,7 @@ maybe_reload_networkd() {
 
 register_networkd_reloader() {
     local -i registered=1 cnt=0
-    local -i max=10000
+    local -i max=3000   # 300s (3000 × 0.1s); matches sysfs wait timeout in setup-policy-routes.sh
     local -r lockfile="${lockdir}/${iface}"
     local old_opts=$-