dracut: backport fix for live images on linux 5.19+

This fixes a bug in the live images when booted from grub as loopback
(https://github.com/void-linux/void-mklive/issues/294).

https://github.com/dracutdevs/dracut/issues/2183
https://github.com/dracutdevs/dracut/pull/2196

srcpkgs/dracut/patches/isoscan-udev-trigger.patch

@@ -0,0 +1,25 @@
+This upstream accepted patch fixes a bug where the live images don't work when
+booted from grub loopback (void-linux/void-mklive#294).
+
+From d880d62f5f81d7ec69555f5deb60694fdb693c01 Mon Sep 17 00:00:00 2001
+From: 0x5c <dev@0x5c.io>
+Date: Thu, 9 Feb 2023 05:26:30 -0500
+Subject: [PATCH] fix: make iso-scan trigger udev events
+
+Fixes #2183
+---
+ modules.d/90dmsquash-live/iso-scan.sh | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/modules.d/90dmsquash-live/iso-scan.sh b/modules.d/90dmsquash-live/iso-scan.sh
+index 886d23033..fa06b33cd 100755
+--- a/modules.d/90dmsquash-live/iso-scan.sh
++++ b/modules.d/90dmsquash-live/iso-scan.sh
+@@ -22,6 +22,7 @@ do_iso_scan() {
+         mount -t auto -o ro "$dev" "/run/initramfs/isoscan" || continue
+         if [ -f "/run/initramfs/isoscan/$isofile" ]; then
+             losetup -f "/run/initramfs/isoscan/$isofile"
++            udevadm trigger --action=add > /dev/null 2>&1
+             ln -s "$dev" /run/initramfs/isoscandev
+             rm -f -- "$job"
+             exit 0

srcpkgs/dracut/template

@@ -1,7 +1,7 @@
 # Template file for 'dracut'
 pkgname=dracut
 version=059
-revision=1
+revision=2
 build_style=configure
 configure_args="--prefix=/usr --sysconfdir=/etc"
 conf_files="/etc/dracut.conf"