regmap: sccb: fix typo and sort headers alphabetically

Fix typos 's/wit/with/' in the comments and sort headers alphabetically
in order to avoid duplicate includes in future.

Fixes: bcf7eac3 ("regmap: add SCCB support")
Reported-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Mark Brown <broonie@kernel.org>