hwmon: (tmp421) Correct the misspelling of the tmp442 compatible attribute in OF device ID table

[ Upstream commit f422449b58548a41e98fc97b259a283718e527db ]

Correct a typo in OF device ID table
The last one should be 'ti,tmp442'

Signed-off-by: Cheng-Min Ao <tony_ao@wiwynn.com>
Signed-off-by: Yu-Hsiang Chen <matt_chen@wiwynn.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>