mysql: import from oldpackages, add myself as maintainer

No updates to the package as it is the latest release of the still
supported 5.1 release series.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

utils/mysql/patches/100-fix_hostname.patch

@@ -0,0 +1,11 @@
+--- a/scripts/mysql_install_db.sh
++++ b/scripts/mysql_install_db.sh
+@@ -322,7 +322,7 @@ then
+ fi
+ 
+ # Try to determine the hostname
+-hostname=`@HOSTNAME@`
++hostname=`cat /proc/sys/kernel/hostname`
+ 
+ # Check if hostname is valid
+ if test "$cross_bootstrap" -eq 0 -a "$in_rpm" -eq 0 -a "$force" -eq 0