Merge branch 'nfc-s3fwrn5-support-a-uart-interface'

Bongsu Jeon says:

====================
nfc: s3fwrn5: Support a UART interface

S3FWRN82 is the Samsung's NFC chip that supports the UART communication.
Before adding the UART driver module, I did refactoring the s3fwrn5_i2c
module to reuse the common blocks.
====================

Link: https://lore.kernel.org/r/1606909661-3814-1-git-send-email-bongsu.jeon@samsung.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>