SWDEV-463401: amdsmi_get_gpu_asic_info() adds num_of_compute_units

number of compute units `amdgpu_gpu_info.num_of_compute_units` is exposed through amdsmi_get_gpu_asic_info().

Code changes related to the following:
  * API
  * CLI
  * Unit tests
  * Examples

Change-Id: Ibeb612d079ed87437a0e56124b8504098fc2dcfd
Signed-off-by: Oliveira, Daniel <daniel.oliveira@amd.com>

example/amd_smi_drm_example.cc

@@ -301,7 +301,8 @@ int main() {
             printf("\tDeviceID: 0x%lx\n", asic_info.device_id);
             printf("\tVendorID: 0x%x\n", asic_info.vendor_id);
             printf("\tRevisionID: 0x%x\n", asic_info.rev_id);
-            printf("\tAsic serial: 0x%s\n\n", asic_info.asic_serial);
+            printf("\tAsic serial: 0x%s\n", asic_info.asic_serial);
+            printf("\tNum of Computes: %d\n\n", asic_info.num_of_compute_units);
 
             // Get VRAM info
             amdsmi_vram_info_t vram_info = {};