rtc: pcf2127: Update Kconfig and code style

Unfortunately version 2 of this patch was applied which was missing some
changes. Fix this.

Signed-off-by: Meng Yi <meng.yi@nxp.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
2 files changed