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>

include/amd_smi/amdsmi.h

@@ -588,7 +588,8 @@ typedef struct {
   uint32_t rev_id;
   char asic_serial[AMDSMI_NORMAL_STRING_LENGTH];
   uint32_t oam_id;   //< 0xFFFF if not supported
-  uint32_t reserved[18];
+  uint32_t num_of_compute_units;   //< 0xFFFFFFFF if not supported
+  uint32_t reserved[17];
 } amdsmi_asic_info_t;
 
 typedef enum {