main/postmarketos-mkinitfs-hook-netboot: show Loading splash once done (MR 4212)

Since the original "Loading..." splash is being shown before the hooks
is being run, we should go back to the "Loading..." splash once we're
done in the hook.

[ci:skip-build]: already built successfully in CI

main/postmarketos-mkinitfs-hook-netboot/APKBUILD

 # Maintainer: Mark <clashclanacc2602@gmail.com>
 pkgname=postmarketos-mkinitfs-hook-netboot
-pkgver=4.0.1
+pkgver=4.0.2
 pkgrel=0
 pkgdesc="Netboot postmarketOS using nbd feature"
 url="https://postmarketos.org"
@@ -21,6 +21,6 @@ package() {
 }
 
 sha512sums="
-dc9252c771ccfa34caffe5cbe5177a2f10f4a41b98a9d173b54e5b60867d795be278899482cac2eb16d865391dc758bd981c35784704c60d6faee00a2ff061a0  netboot.sh
+2af13144ef4ba831ebdac1056f9c493ab05f3f7bfe62eb2a8ff3cc6741d225511f1f59a94f33414678bcab9dab35c7b025e5eb728fe6347e3c4b6d6e2d770758  netboot.sh
 3c9c812a6cd25640e6cf4d722cff6c6356d5666ec6009b4c65f89e62211cc406d2cd09e0fdda6b1c1906ee32c3854988ab701cee8811208e3ef666f09e638568  netboot.modules
 "

main/postmarketos-mkinitfs-hook-netboot/netboot.sh

@@ -28,4 +28,7 @@ done
 
 echo "Connected to $NBD_IP!"
 
+# Show "Loading" splash again when continuing
+show_splash "Loading..."
+
 mount_subpartitions