staging: gdm724x: depend on CONFIG_TTY
staging: gdm724x: depend on CONFIG_TTY

The driver uses the tty layer, so explicitly say that, to prevent
randomconfig build errors.

Reported-by: Randy Dunlap <6f29df8e90a57f1ba61ffd63b0468c86bb6d3a99@infradead.org>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs