hwmon: (coretemp) Add TjMax for Silvermont through Tremont Atoms

hwmon: (coretemp) Add TjMax for Silvermont through Tremont Atoms

Add fallback TjMax values for Intel Atom processors based on Silvermont,
Airmont, Goldmont, and Tremont microarchitectures. These processors
support MSR_IA32_TEMPERATURE_TARGET for reading TjMax directly, so these
table entries serve as fallback values only when the MSR read fails
(e.g., in some virtualization scenarios).

Added processors and TjMax values:

- INTEL_ATOM_SILVERMONT (0x37, Bay Trail):
  - Stepping 9 (E38xx embedded): 110C
  - Other steppings (Z37xx tablet): 90C
  Stepping identified from Intel E3800 Specification Update.

- INTEL_ATOM_SILVERMONT_MID (0x4a, Merrifield): 90C

- INTEL_ATOM_SILVERMONT_MID2 (0x5a, Moorefield): 90C

- INTEL_ATOM_AIRMONT (0x4c, Cherry Trail): 90C

- INTEL_ATOM_GOLDMONT (0x5c, Apollo Lake): 105C

- INTEL_ATOM_GOLDMONT_PLUS (0x7a, Gemini Lake): 105C

- INTEL_ATOM_TREMONT (0x96, Elkhart Lake): 105C

- INTEL_ATOM_TREMONT_L (0x9c, Jasper Lake): 105C

Not included (MSR reads work reliably, server/specialized chips):
- INTEL_ATOM_SILVERMONT_D (Avoton): Server, Tcase 97C
- INTEL_ATOM_GOLDMONT_D (Denverton): Server, Tcase 82C
- INTEL_ATOM_AIRMONT_NP (Lightning Mountain): Network processor
- INTEL_ATOM_TREMONT_D (Jacobsville): Server
- INTEL_ATOM_GRACEMONT (Alder Lake-N): Very new, MSR works

Reference: Intel datasheets and ARK processor specifications
- Z3600/Z3700 datasheet: https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/atom-z36xxx-z37xxx-datasheet-vol-1.pdf
- E3845 ARK: https://www.intel.com/content/www/us/en/products/sku/78475/intel-atom-processor-e3845-2m-cache-1-91-ghz/specifications.html
- E3800 Spec Update: https://community.intel.com/cipcp26785/attachments/cipcp26785/embedded-atom-processors/4708/1/600834-329901-intel-atom-processor-e3800-product-family-su-rev015.pdf

Signed-off-by: Laveesh Bansal <laveeshb@laveeshbansal.com>
Link: https://lore.kernel.org/r/20260106155426.547872-3-laveeshb@laveeshbansal.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>