Missing zes_pwr_handle_t for iGPUs on Linux

[ProjectPhysX]

Hi @joshuaranjan,

while testing some iGPUs (Alder Lake, Meteor Lake, Lunar Lake), I found that power reporting works on Windows but is broken on Linux:

counter on Intel iGPUs	Windows	Linux
zesDeviceGetCardPowerDomain()	❌ returns ZE_RESULT_ERROR_UNSUPPORTED_FEATURE	❌ returns ZE_RESULT_ERROR_UNSUPPORTED_FEATURE
zesDeviceEnumPowerDomains()	✅ returns ZE_RESULT_SUCCESS and returns one valid zes_pwr_handle_t	❌ returns ZE_RESULT_SUCCESS but no zes_pwr_handle_t

System configuration is:

Intel Arc B580, Intel Arc A750, Intel UHD Graphics 770

• on Linux: Ubuntu 24.04.4 LTS, kernel 6.17.0-22-generic, Intel Arc driver version 26.09.37435.1 (Linux)
• on Windows: Windows 11, latest public driver gfx_win_101.8629
  I'm testing with: https://github.com/ProjectPhysX/hw-smi

Kind regards,
Moritz