Fix AS7726 not showing serial number in 'show platform summary' (sonic-net#10489)

Author: FuzailBrcm

platform/pddf/platform-api-pddf-base/sonic_platform_pddf_base/pddf_chassis.py

@@ -96,11 +96,11 @@ def get_model(self):
         """
         return self._eeprom.part_number_str()
 
-    def get_serial(self):
+    def get_service_tag(self):
         """
-        Retrieves the serial number of the chassis (Service tag)
+        Retrieves the service tag of the chassis
         Returns:
-            string: Serial number of chassis
+            string: Sevice tag of chassis
         """
         return self._eeprom.serial_str()
 
@@ -123,7 +123,7 @@ def get_base_mac(self):
         """
         return self._eeprom.base_mac_addr()
 
-    def get_serial_number(self):
+    def get_serial(self):
         """
         Retrieves the hardware serial number for the chassis
 

platform/pddf/platform-api-pddf-base/sonic_platform_pddf_base/pddf_fan.py

@@ -150,7 +150,7 @@ def get_speed(self):
             if output['status'].isalpha():
                 return 0
             else:
-                speed = int(output['status'])
+                speed = int(float(output['status']))
 
             max_speed = int(self.plugin_data['PSU']['PSU_FAN_MAX_SPEED'])
             speed_percentage = round((speed*100)/max_speed)