tty: atmel_serial: Fix typo retreives to retrieves

Fix typo 'retreives' to 'retrieves' in atmel_serial.c file.

Signed-off-by: Shivam Chaudhary <cvam0000@gmail.com>
Acked-by: Richard Genoud <richard.genoud@bootlin.com>
Link: https://lore.kernel.org/r/20241106142720.41351-1-cvam0000@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>