```
Mk/uses/mysql.mk: Prepare for MariaDB 10.2
- Transform _LIBVER assignments to for loop
- Add LIBVER for MariaDB 10.2
- Add _MYSQL_SHLIB parameter, MariaDB 10.2 uses libmariadb
- Change LIB_DEPENDS to use new _MYSQL_LIBVER parameter
- Generate correct PKGNAME in WARNING and IGNORE messages
```