main/open-lldp: fix rebuild error

missing string.h

main/open-lldp/APKBUILD

@@ -2,7 +2,7 @@
 # Maintainer: Leonardo Arena <rnalrd@alpinelinux.org>
 pkgname=open-lldp
 pkgver=1.1
-pkgrel=1
+pkgrel=2
 pkgdesc="Open Source implementation of the IEEE standard 802.1AB Link Layer Discovery Protocol (LLDP)"
 url="http://www.open-lldp.org"
 arch="all"
@@ -26,6 +26,7 @@ subpackages="
 	"
 source="$pkgname-$pkgver.tar.gz::https://github.com/intel/openlldp/archive/refs/tags/v$pkgver.tar.gz
 	reopenstdout.patch
+	string-header.patch
 	lldpad.initd
 	lldpad.confd
 	"
@@ -68,6 +69,7 @@ package() {
 sha512sums="
 794bd2d43e7b6e76a1aa9d1e650f24a52b4cb66166058ce4ec3f0c6567bcdff149ca86ab9108e82be14f7e7bf43c7486479edc23d851e739a2a22de7038ecb35  open-lldp-1.1.tar.gz
 74cf3d7ef3c6d00cf05713bf5ef505292b6cfd7d6e080993947e88a44d725906d7243d59ee12bb468c093dc26937a5efe8fb644eca1d4c5b545825ce78253362  reopenstdout.patch
+a0a61d0ca93543574486fba990ebec4401533a69f0f2c1671394ec55e4e56169f7002996335e8dd08f7d73d0ab2c27ec7824e6df12d78362ea5cf63a676c7e12  string-header.patch
 d8c7d3c449a9c557814f70a5af15b1b8e34f4c465293aa962bc3a8310e24f8363cf15e75d3cbdc8894ca7a0b1e1962daaaba75ecb0caf770471ae0988e85be7b  lldpad.initd
 5dc09090913e55bde9aab3ad33eb7889942bb7a0583ae1a94cc31f6c8e34ccae18c02f2c191e157f81f2949cc91998d673b37d60522dc9c476d63136512f2b58  lldpad.confd
 "

main/open-lldp/string-header.patch

@@ -0,0 +1,12 @@
+diff --git a/clif.c b/clif.c
+index cad6f75..e3680b5 100644
+--- a/clif.c
++++ b/clif.c
+@@ -37,6 +37,7 @@
+ #include <sys/socket.h>
+ #include "clif.h"
+ #include "clif_msgs.h"
++#include <string.h>
+ 
+ #if defined(CONFIG_CLIF_IFACE_UNIX) || defined(CONFIG_CLIF_IFACE_UDP)
+ #define CLIF_IFACE_SOCKET