hwmon: (dell-smm) Add support for Dell OptiPlex 7040

hwmon: (dell-smm) Add support for Dell OptiPlex 7040

[ Upstream commit 53d3bd48ef6ff1567a75ca77728968f5ab493cb4 ]

The Dell OptiPlex 7040 supports the legacy SMM interface for reading
sensors and performing fan control. Whitelist this machine so that
this driver loads automatically.

Closes: https://github.com/Wer-Wolf/i8kutils/issues/15
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20250917181036.10972-5-W_Armin@gmx.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>