configurations: yosemite4: revise sensor threshold

Revise the threshold of following sensors:
- MGNT_TEMP_C
- NICX_TEMP_C
- MEDUSA_MBX_12VHSC_TEMP_C
- MEDUSA_TEMPX_C
- MEDUSA_48VHSCX_TEMP_C
- MEDUSA_12VDELTAX_TEMP_C
- SPIDER_TEMPX_C

Change-Id: I7c29d43deea2644b4d9f8ac56fd627e24cef34dc
Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>
diff --git a/configurations/yosemite4_spiderboard.json b/configurations/yosemite4_spiderboard.json
index 203b8fc..108ae77 100644
--- a/configurations/yosemite4_spiderboard.json
+++ b/configurations/yosemite4_spiderboard.json
@@ -989,7 +989,7 @@
                     "Direction": "greater than",
                     "Name": "upper critical",
                     "Severity": 1,
-                    "Value": 125
+                    "Value": 50
                 }
             ],
             "Type": "TMP75"
@@ -1003,7 +1003,7 @@
                     "Direction": "greater than",
                     "Name": "upper critical",
                     "Severity": 1,
-                    "Value": 125
+                    "Value": 50
                 }
             ],
             "Type": "TMP75"