hwmon: (shtc1) Fix property misspelling

[ Upstream commit 52a2c70c ]

The property name is "sensirion,low-precision", not
"sensicon,low-precision".

Cc: Chris Ruehl <chris.ruehl@gtsys.com.hk>
Fixes: be7373b6

 ("hwmon: shtc1: add support for device tree bindings")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>