platform/x86: lenovo-wmi-other: Add HWMON for fan reporting/tuning

platform/x86: lenovo-wmi-other: Add HWMON for fan reporting/tuning

Register an HWMON device for fan reporting/tuning according to
Capability Data 00 (capdata00) and Fan Test Data (capdata_fan) provided
by lenovo-wmi-capdata. The corresponding HWMON nodes are:

 - fanX_div: internal RPM divisor
 - fanX_input: current RPM
 - fanX_max: maximum RPM
 - fanX_min: minimum RPM
 - fanX_target: target RPM (tunable, 0=auto)

Information from capdata00 and capdata_fan are used to control the
visibility and constraints of HWMON attributes. Fan info from capdata00
is collected on bind, while fan info from capdata_fan is collected in a
callback. Once all fan info is collected, register the HWMON device.

Signed-off-by: Rong Zhang <i@rong.moe>
Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Tested-by: Kurt Borja <kuurtb@gmail.com>
Link: https://patch.msgid.link/20260120182104.163424-8-i@rong.moe
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>