amdtemp: add support for AMD Family 1Ah Models 40h-4Fh

[yuripv]

Tested with 9900X CPU.

amdsmn0: <AMD Family 1ah System Management Network> on hostb0
amdtemp0: <AMD CPU On-Die Thermal Sensors> on hostb0
amdtemp0: Found 24 cores and 1 sensors.

The temperatures below match what IPMI reports:

$ sysctl dev.cpu | grep temp
dev.cpu.23.temperature: 43.1C
dev.cpu.22.temperature: 43.1C
dev.cpu.21.temperature: 43.1C
dev.cpu.20.temperature: 43.1C
dev.cpu.19.temperature: 43.1C
dev.cpu.18.temperature: 43.1C
dev.cpu.17.temperature: 43.1C
dev.cpu.16.temperature: 43.1C
dev.cpu.15.temperature: 43.1C
dev.cpu.14.temperature: 43.1C
dev.cpu.13.temperature: 43.1C
dev.cpu.12.temperature: 43.1C
dev.cpu.11.temperature: 43.1C
dev.cpu.10.temperature: 43.1C
dev.cpu.9.temperature: 43.1C
dev.cpu.8.temperature: 43.1C
dev.cpu.7.temperature: 43.1C
dev.cpu.6.temperature: 43.1C
dev.cpu.5.temperature: 43.1C
dev.cpu.4.temperature: 43.1C
dev.cpu.3.temperature: 43.1C
dev.cpu.2.temperature: 43.1C
dev.cpu.1.temperature: 43.1C
dev.cpu.0.temperature: 43.1C