add patch to announce prefix with preferred lifetime 0

patches/packages/packages/0003-uradvd-add-patch-to-announce-prefix-with-preferred-lifetime-0.patch

+From: Nico <github@nicoboehr.de>
+Date: Fri, 29 Dec 2023 23:17:27 +0000
+Subject: uradvd: add patch to announce prefix with preferred lifetime 0
+
+diff --git a/net/uradvd/patches/001-uradvd-announce-with-pref-0.patch b/net/uradvd/patches/001-uradvd-announce-with-pref-0.patch
+new file mode 100644
+index 0000000000000000000000000000000000000000..7882639d1bfec0923460c93f55fe9f44e58212c1
+--- /dev/null
++++ b/net/uradvd/patches/001-uradvd-announce-with-pref-0.patch
+@@ -0,0 +1,11 @@
++--- a/uradvd.c
+++++ b/uradvd.c
++@@ -43,7 +43,7 @@
++ 
++ /* These are in seconds */
++ #define AdvValidLifetime 86400u
++-#define AdvPreferredLifetime 14400u
+++#define AdvPreferredLifetime 0u
++ #define AdvDefaultLifetime 0u
++ #define AdvCurHopLimit 64u
++ #define AdvRDNSSLifetime 1200u