mariadb: Add patch to fix urecognized options

Add patch to tell autoconf about with-plugin option.
In this way we avoid warnings like:
configure: WARNING: unrecognized options: --with-plugin-maria

Change-Id: Id64ac01d7f2072e1bca8979c5da3e8c6520105cb
Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>