[ssd_generic]Fix ssd no vendor information

The ssd information can show correctly even if can't get model information in generic SSD information.
When unknown model name , use Virtuim tool to get SSD Health/Temperature .

How has this been Tested ?
Manual testing on Edgecore switch (ex AS4630_54PE)

sonic_platform_base/sonic_ssd/ssd_generic.py

@@ -57,8 +57,9 @@ def __init__(self, diskdev):
                 self.fetch_vendor_ssd_info(diskdev, model_short)
                 self.parse_vendor_ssd_info(model_short)
             else:
-                # No handler registered for this disk model
-                pass
+                # unknown model name , use Virtium to get information
+                self.vendor_ssd_info =self._execute_shell(self.vendor_ssd_utility["Virtium"]["utility"].format(diskdev))
+                self.parse_virtium_info()
         else:
             # Failed to get disk model
             self.model = "Unknown"
@@ -124,20 +125,22 @@ def parse_innodisk_info(self):
                 self.temperature = temp_raw.split()[-6]
 
     def parse_virtium_info(self):
-        if self.vendor_ssd_info:
-            self.temperature = self._parse_re('Temperature_Celsius\s*\d*\s*(\d+?)\s+', self.vendor_ssd_info)
+        self.temperature = self._parse_re('Temperature_Celsius\s*\d*\s*(\d+?)\s+', self.vendor_ssd_info)
+        self.health = self._parse_re('Remaining_Life_Left\s*\d*\s*(\d+?)\s+', self.vendor_ssd_info)
+        if self.health == NOT_AVAILABLE:
             nand_endurance = self._parse_re('NAND_Endurance\s*\d*\s*(\d+?)\s+', self.vendor_ssd_info)
             avg_erase_count = self._parse_re('Average_Erase_Count\s*\d*\s*(\d+?)\s+', self.vendor_ssd_info)
             try:
                 self.health = 100 - (float(avg_erase_count) * 100 / float(nand_endurance))
-            except (ValueError, ZeroDivisionError):
+            except ValueError:
                 pass
 
     def fetch_vendor_ssd_info(self, diskdev, model):
         self.vendor_ssd_info = self._execute_shell(self.vendor_ssd_utility[model]["utility"].format(diskdev))
 
     def parse_vendor_ssd_info(self, model):
-        self.vendor_ssd_utility[model]["parser"]()
+        if self.vendor_ssd_info:
+            self.vendor_ssd_utility[model]["parser"]()
 
     def get_health(self):
         """