ROCm SMI CLI: Fix --showproductname bugs

This patch fixes a couple of --showproductname bugs, both of which
are related to the device's SKU.
Previously if a device with a non-standard VBIOS name was used,
fetching that device's SKU wasn't working correctly.

A standard VBIOS name should follow the following pattern:
AAA-BBBBBB-CCC
Where the middle section "BBBBBB" between the hypens is the SKU.

Now, SKU can be correctly fetched even with a non-standard VBIOS
name, and return 'unkown' if SKU does not exist.

Signed-off-by: Ori Messinger <Ori.Messinger@amd.com>
Change-Id: I5899a859c6131c6048bb31a4305ddacbac3075a9


[ROCm/amdsmi commit: 5c478e9eb9]

projects/amdsmi/python_smi_tools/rocm_smi.py

@@ -2033,8 +2033,11 @@ def showProductName(deviceList):
             # Retrieve the device SKU as a substring from VBIOS
             ret = rocmsmi.rsmi_dev_vbios_version_get(device, vbios, 256)
             if rsmi_ret_ok(ret, device) and vbios.value.decode():
-                # Device SKU is just 6 characters after the first occurance of '-' in vbios_version
-                device_sku = vbios.value.decode().split('-')[1][:6]
+                # Device SKU is just the characters in between the two '-' in vbios_version
+                if vbios.value.decode().count('-') == 2 and len(str(vbios.value.decode().split('-')[1])) > 1:
+                    device_sku = vbios.value.decode().split('-')[1]
+                else:
+                    device_sku = 'unknown'
             printLog(device, 'Card SKU', '\t\t' + device_sku)
         else:
             printLog(device, 'Incompatible device.\n' \