[SWDEV-520665] Add support for board voltage (#303)

* Add the API and CLI to show the board voltage. 

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Change-Id: Icb25bd653bb1d004704b5a21b378ca31b2b242c7
Signed-off-by: Arif, Maisam <Maisam.Arif@amd.com>
Signed-off-by: AL Musaffar, Yazen <Yazen.ALMusaffar@amd.com>

[ROCm/amdsmi commit: 970560fc7c]

projects/amdsmi/py-interface/amdsmi_interface.py

@@ -309,6 +309,7 @@ class AmdSmiVoltageMetric(IntEnum):
 
 class AmdSmiVoltageType(IntEnum):
     VDDGFX = amdsmi_wrapper.AMDSMI_VOLT_TYPE_VDDGFX
+    VDDBOARD = amdsmi_wrapper.AMDSMI_VOLT_TYPE_VDDBOARD
     INVALID = amdsmi_wrapper.AMDSMI_VOLT_TYPE_INVALID
 
 class AmdSmiAcceleratorPartitionResourceType(IntEnum):