hwmon: (peci/cputemp) Fix miscalculated DTS for SKX

hwmon: (peci/cputemp) Fix miscalculated DTS for SKX

[ Upstream commit 2b91c4a870c9830eaf95e744454c9c218cccb736 ]

For Skylake, DTS temperature of the CPU is reported in S10.6 format
instead of S8.8.

Reported-by: Paul Fertser <fercerpav@gmail.com>
Link: https://lore.kernel.org/lkml/ZBhHS7v+98NK56is@home.paul.comp/
Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
Link: https://lore.kernel.org/r/20230321090410.866766-1-iwona.winiarska@intel.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>