move modprobe to run_earlyhook()

Signed-off-by: Christian Hesse <mail@eworm.de>

archiso/initcpio/hooks/archiso_pxe_nbd

 # vim: set ft=sh:
 
+run_earlyhook() {
+    if [[ -n "${ip}" && -n "${archiso_nbd_srv}" ]]; then
+        # Module autoloading like with loop devices does not work, doing manually...
+         modprobe nbd 2> /dev/null
+    fi
+}
+
 run_hook() {
     if [[ -n "${ip}" && -n "${archiso_nbd_srv}" ]]; then
 
@@ -13,9 +20,6 @@ run_hook() {
 archiso_pxe_nbd_mount_handler () {
     newroot="${1}"
 
-    # Module autoloading like with loop devices does not work, doing manually...
-    modprobe nbd 2> /dev/null
-
     msg ":: Waiting for boot device..."
     while ! poll_device /dev/nbd0 30; do
         echo "ERROR: boot device didn't show up after 30 seconds..."