Increase PMU_MID_SPC_THRESHOLD to 23 for 60fps

Test results show that increasing Spc threshold for mid core to 23 can
help with framedrop rate without affecting the power.

Bug: 317052150
Test: https://docs.google.com/spreadsheets/d/1bpSfVptz8nolSPfeYfkbjnP9pIK3l-U1JyqPNCwOwLc/edit?resourcekey=0-oiFKaxI6PtSGR6yXed327w&gid=430808958#gid=430808958
Change-Id: I9d5efbc0b7465825b36bff0dc70671121198b8c3

perf/powerhint-husky.json

@@ -718,7 +718,7 @@
       "Values": [
         "50",
         "30",
-        "20",
+        "23",
         "18"
       ],
       "DefaultIndex": 0
@@ -1891,7 +1891,7 @@
       "PowerHint": "CAMERA_STREAMING_HIGH",
       "Node": "PMU_MID_SPC_THRESHOLD",
       "Duration": 0,
-      "Value": "20"
+      "Value": "23"
     },
     {
       "PowerHint": "CAMERA_STREAMING_HIGH",

perf/powerhint-ripcurrent.json

@@ -764,7 +764,7 @@
       "Values": [
         "50",
         "30",
-        "20",
+        "23",
         "18"
       ],
       "DefaultIndex": 0
@@ -1740,7 +1740,7 @@
       "PowerHint": "CAMERA_STREAMING_HIGH",
       "Node": "PMU_MID_SPC_THRESHOLD",
       "Duration": 0,
-      "Value": "20"
+      "Value": "23"
     },
     {
       "PowerHint": "CAMERA_STREAMING_HIGH",

perf/powerhint-shiba.json

@@ -718,7 +718,7 @@
       "Values": [
         "50",
         "30",
-        "20",
+        "23",
         "18"
       ],
       "DefaultIndex": 0
@@ -1795,7 +1795,7 @@
       "PowerHint": "CAMERA_STREAMING_HIGH",
       "Node": "PMU_MID_SPC_THRESHOLD",
       "Duration": 0,
-      "Value": "20"
+      "Value": "23"
     },
     {
       "PowerHint": "CAMERA_STREAMING_HIGH",