serial: fsl_lpuart: use UARTDATA_MASK macro

Use the corresponding macro instead of the magic number. While at it,
drop the useless cast to "unsigned char".

Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20210512141255.18277-3-michael@walle.cc
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michael Walle 2021-05-12 16:12:48 +02:00 • committed by Greg Kroah-Hartman
commit ec22c3eec5