Add missing patch.

lxcfs-5.0.3-fix-service.patch

@@ -0,0 +1,13 @@
+diff --git a/config/init/meson.build b/config/init/meson.build
+index 8445955..5200570 100644
+--- a/config/init/meson.build
++++ b/config/init/meson.build
+@@ -2,7 +2,7 @@
+ 
+ if 'systemd' in init_script
+     systemd = dependency('systemd')
+-    systemd_system_unit_dir = get_option('prefix') + systemd.get_pkgconfig_variable('systemdsystemunitdir')
++    systemd_system_unit_dir = systemd.get_pkgconfig_variable('systemdsystemunitdir')
+     systemd_service = custom_target(
+         'lxcfs.service',
+         input: 'systemd/lxcfs.service.in',