pcie_bw not available for soc21
Describe the problem
The implementation in soc21.c of soc21_asic_funcs does not register any get_pcie_usage
function.
Hence, the exposed sysfs file pcie_bw which is populated by the amdgpu_get_pcie_bw function will always return -ENODATA
and result in an empty file.
Describe the new feature behavior
Implement a soc21_get_pcie_usage
similar to soc15_get_pcie_usage or vega20_get_pcie_usage for soc21 and register the function in soc21_asic_funcs.
Describe the target user/application
Provide the PCIe bandwidth through the pcie_bw sysfs file for the Navi architecture.