serial: stm32: allow selecting console when the driver is module

serial: stm32: allow selecting console when the driver is module

commit cc4d900d0d6d8dd5c41832a93ff3cfa629a78f9a upstream.

Console can be enabled on the UART compile as module.
Change dependency to allow console mode when the driver is built as module.

Fixes: 48a6092fb41fa ("serial: stm32-usart: Add STM32 USART Driver")
Cc: stable@vger.kernel.org
Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Link: https://lore.kernel.org/r/20250822141923.61133-1-raphael.gallais-pou@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>