[SWDEV-508173] [AMDSMI] Python API missing function errors (#46)

* [SWDEV-508173] Updates include:
- Updating py-interface to import amdsmi_get_gpu_reg_table_info and amdsmi_get_gpu_pm_metrics_info.
- Updating the ctypes from byref to pointer.

Signed-off-by: Castillo, Juan <Juan.Castillo@amd.com>

py-interface/__init__.py

@@ -231,6 +231,8 @@ from .amdsmi_interface import amdsmi_set_gpu_memory_partition_mode
 
 # # Individual GPU Metrics Functions
 from .amdsmi_interface import amdsmi_get_gpu_metrics_header_info
+from .amdsmi_interface import amdsmi_get_gpu_reg_table_info
+from .amdsmi_interface import amdsmi_get_gpu_pm_metrics_info
 
 # # Enums
 from .amdsmi_interface import AmdSmiInitFlags