zabbix: Bump to latest version

This upgrade zabbix to the newest version. Changing SQLite for PostgreSQL, because of dropping SQLite support for server/frontend.
More info:https://www.zabbix.com/documentation/3.4/manual/installation/upgrade_notes_340#dropping_sqlite_support_for_serverfrontend
In addition added required dependencies.
More info:https://www.zabbix.com/documentation/3.4/manual/installation/requirements

Compile tested: Yes, brcm2708
Run tested: Yes, brcm2708

Signed-off-by: Krystian Kozak <krystian.kozak20@gmail.com>

admin/zabbix/patches/002-fix-res_send-on-uclibc.patch

@@ -1,35 +0,0 @@
---- a/configure.ac
-+++ b/configure.ac
-@@ -161,6 +161,10 @@ if test "x$found_resolv" != "xyes"; then
- 	AC_MSG_ERROR([Unable to do DNS lookups (libresolv check failed)])
- fi
- LIBS="${LIBS} ${RESOLV_LIBS}"
-+AC_SEARCH_LIBS([res_mkquery], [], [AC_DEFINE([HAVE_RES_MKQUERY], 1, [Define if res_mkquery exists])])
-+AC_SEARCH_LIBS([__res_mkquery], [], [AC_DEFINE([HAVE_RES_MKQUERY], 1, [Define if res_mkquery exists])])
-+AC_SEARCH_LIBS([res_send], [], [AC_DEFINE([HAVE_RES_SEND], 1, [Define if res_send exists])])
-+AC_SEARCH_LIBS([__res_send], [], [AC_DEFINE([HAVE_RES_SEND], 1, [Define if res_send exists])]) 
- 
- dnl *****************************************************************
- dnl *                                                               *
---- a/src/libs/zbxsysinfo/common/net.c
-+++ b/src/libs/zbxsysinfo/common/net.c
-@@ -471,6 +471,7 @@ static int	dns_query(AGENT_REQUEST *requ
- 		return SYSINFO_RET_FAIL;
- 	}
- 
-+#if defined(HAVE_RES_MKQUERY) && defined(HAVE_RES_SEND) 
- 	if (-1 == (res = res_mkquery(QUERY, zone, C_IN, type, NULL, 0, NULL, buf, sizeof(buf))))
- 	{
- 		SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot create DNS query: %s", zbx_strerror(errno)));
-@@ -505,6 +506,11 @@ static int	dns_query(AGENT_REQUEST *requ
- 	_res.retry = retry;
- 
- 	res = res_send(buf, res, answer.buffer, sizeof(answer.buffer));
-+#else /* defined(HAVE_RES_QUERY) && defined(HAVE_RES_SEND) */
-+	/* retrand and retry are ignored */
-+	if (-1 == (res = res_query(zone, C_IN, type, answer.buffer, sizeof(answer.buffer))))
-+	return SYSINFO_RET_FAIL;
-+#endif 
- 
- 	_res.options = saved_options;
- 	_res.retrans = saved_retrans;

admin/zabbix/patches/100-musl-compat.patch

@@ -9,15 +9,4 @@
    sys/socket.h sys/loadavg.h arpa/inet.h \
    sys/vmmeter.h strings.h vm/vm_param.h \
    sys/time.h kstat.h sys/syscall.h sys/sysmacros.h \
-@@ -63,6 +63,11 @@ AC_CHECK_HEADERS(stdio.h stdlib.h string
-   Winber.h lber.h ws2tcpip.h inttypes.h sys/file.h grp.h \
-   execinfo.h libperfstat.h sys/systemcfg.h sys/mnttab.h mntent.h sys/times.h \
-   dlfcn.h sys/utsname.h)
-+AC_CHECK_HEADERS(sys/sysinfo.h, [], [], [
-+#ifdef HAVE_LINUX_KERNEL_H
-+#  include <linux/kernel.h>
-+#endif
-+])
- AC_CHECK_HEADERS(resolv.h, [], [], [
- #ifdef HAVE_SYS_TYPES_H
- #  include <sys/types.h>
+