serial: sh-sci: Fix HSCIF RX sampling point adjustment

The calculation of the sampling point has min() and max() exchanged.
Fix this by using the clamp() helper.

Fixes: 63ba1e00f178a448 ("serial: sh-sci: Support for HSCIF RX sampling point adjustment")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
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v2:
  - Add Reviewed-by, Acked-by.
1 file changed