hwmon: (ftsteutates) Update specifications website

The Fujitsu OEM Mainboard business was acquired by Kontron,
so the specifications of the Teutates chip was transferred to
the new Kontron FTP server.

Update the specifications website accordingly. The outdated
sensors how-to was omitted.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20230226014830.10929-1-W_Armin@gmx.de


Signed-off-by: Guenter Roeck <linux@roeck-us.net>