dracut: add patch to fix a potential segfault

Without this patches dracut may segfault on certain platforms
with certain kernel configurations. In this case, it segfaults
on ppc64 big endian. Bump rev because it may happen anywhere.

Closes: #11384 [via git-merge-pr]

srcpkgs/dracut/patches/fix-dracut-install-segv.patch

@@ -0,0 +1,16 @@
+This fixes a segfault, see https://github.com/dracutdevs/dracut/pull/541
+
+Remove after update to 050.
+
+--- install/dracut-install.c
++++ install/dracut-install.c
+@@ -1243,6 +1243,9 @@ static int install_dependent_modules(struct kmod_list *modlist)
+                 mod = kmod_module_get_module(itr);
+                 path = kmod_module_get_path(mod);
+ 
++                if (path == NULL)
++                        continue;
++
+                 name = kmod_module_get_name(mod);
+                 if (arg_mod_filter_noname && (regexec(&mod_filter_noname, name, 0, NULL, 0) == 0)) {
+                         kmod_module_unref(mod);

srcpkgs/dracut/template

@@ -1,7 +1,7 @@
 # Template file for 'dracut'
 pkgname=dracut
 version=048
-revision=4
+revision=5
 build_style=configure
 configure_args="--prefix=/usr --sysconfdir=/etc"
 conf_files="/etc/dracut.conf"