kea: backport a patch to fix build errors exposed by latest update batch

(From OE-Core rev: 043e32278e91843277143777b27a498fa27f0a8f)

Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-connectivity/kea/files/0001-add-missing-headers-in-timer_mgr.cc.patch

@@ -0,0 +1,29 @@
+From 11981d637273778f408d15f488cc9e1d244dcae8 Mon Sep 17 00:00:00 2001
+From: Andrei Pavel <andrei@isc.org>
+Date: Thu, 29 Jul 2021 21:33:42 +0300
+Subject: [PATCH] add missing headers in timer_mgr.cc
+
+Upstream-Status: Backport [https://github.com/isc-projects/kea/commit/2bba96164f6c5c8f56de7a5dc52af73bfd51cccd]
+Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
+---
+ src/lib/dhcpsrv/timer_mgr.cc | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+diff --git a/src/lib/dhcpsrv/timer_mgr.cc b/src/lib/dhcpsrv/timer_mgr.cc
+index 5ec4123..5611c46 100644
+--- a/src/lib/dhcpsrv/timer_mgr.cc
++++ b/src/lib/dhcpsrv/timer_mgr.cc
+@@ -14,6 +14,13 @@
+ #include <functional>
+ #include <utility>
+ 
++#include <exception>
++#include <map>
++#include <mutex>
++#include <ostream>
++#include <string>
++#include <stddef.h>
++
+ using namespace isc;
+ using namespace isc::asiolink;
+ 

meta/recipes-connectivity/kea/kea_1.8.2.bb

@@ -20,6 +20,7 @@ SRC_URI = "http://ftp.isc.org/isc/kea/${PV}/${BP}.tar.gz \
            file://0001-src-lib-log-logger_unittest_support.cc-do-not-write-.patch \
            file://0001-ax_cpp11.m4-Include-memory-header.patch \
            file://0001-include-limits.h.patch \
+           file://0001-add-missing-headers-in-timer_mgr.cc.patch \
            "
 SRC_URI[sha256sum] = "486ca7abedb9d6fdf8e4344ad8688d1171f2ef0f5506d118988aadeae80a1d39"