Add d/p/14_mariad to fix FTBFS with MariaDB 10.3. (Closes: #919375)

Taken from upstream

debian/patches/14_mariadb

@@ -0,0 +1,27 @@
+From 399cc141526ee77e1befce469f1fab40645f299d Mon Sep 17 00:00:00 2001
+From: Bernard Spil <Sp1l@users.noreply.github.com>
+Date: Mon, 6 Nov 2017 17:31:44 +0100
+Subject: [PATCH] Fix build issue with MariaDB 10.2
+Bug-Debian: https://bugs.debian.org/919395
+
+As of 10.2 MariaDB no longer defines MYSQL_PORT.
+---
+ plugins/common.h | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/plugins/common.h b/plugins/common.h
+index 8719b502..6bf4fca4 100644
+--- a/plugins/common.h
++++ b/plugins/common.h
+@@ -174,6 +174,11 @@
+  *
+  */
+ 
++/* MariaDB 10.2 client does not set MYSQL_PORT */
++#ifndef MYSQL_PORT
++#  define MYSQL_PORT 3306
++#endif
++
+ enum {
+ 	OK = 0,
+ 	ERROR = -1

debian/patches/series

@@ -4,3 +4,4 @@
 11_check_dhcp_MSG_PEAK
 12_check_apt_only_crit
 13_check_apt_list_packages
+14_mariadb