[Mellanox] Align PSU temperature sysfs node name with hw-management change (#16820)

- Why I did it
hw-management renamed PSU temperature related sysfs:

psu1_temp -> psu1_temp1
psu2_temp -> psu2_temp1
psu1_temp_max -> psu1_temp1_max
psu2_temp_max -> psu2_temp1_max
This PR is to align the change in SONiC.

- How I did it
Use new sysfs node for PSU temperature and PSU temperature threshold

- How to verify it
Manual test
sonic-mgmt Regression test

platform/mellanox/mlnx-platform-api/sonic_platform/psu.py

@@ -242,8 +242,8 @@ class Psu(FixedPsu):
 
         self.psu_power_max_capacity = os.path.join(PSU_PATH, "config/psu{}_power_capacity".format(self.index))
 
-        self.psu_temp = os.path.join(PSU_PATH, 'thermal/psu{}_temp'.format(self.index))
-        self.psu_temp_threshold = os.path.join(PSU_PATH, 'thermal/psu{}_temp_max'.format(self.index))
+        self.psu_temp = os.path.join(PSU_PATH, 'thermal/psu{}_temp1'.format(self.index))
+        self.psu_temp_threshold = os.path.join(PSU_PATH, 'thermal/psu{}_temp1_max'.format(self.index))
 
         self.psu_power_slope = os.path.join(PSU_PATH, self.PSU_POWER_SLOPE.format(self.index))
 

platform/mellanox/mlnx-platform-api/sonic_platform/thermal.py

@@ -65,8 +65,8 @@ THERMAL_NAMING_RULE = {
     "psu thermals":
     {
         "name": "PSU-{} Temp",
-        "temperature": "psu{}_temp",
-        "high_threshold": "psu{}_temp_max",
+        "temperature": "psu{}_temp1",
+        "high_threshold": "psu{}_temp1_max",
         "type": "indexable"
     },
     "chassis thermals": [