schemas: Add CheckHysteresisWithSetpoint for PID

Adding CheckHysteresisWithSetpoint, an optional boolean parameter,
which has already been implemented and merged:
https://gerrit.openbmc.org/c/openbmc/phosphor-pid-control/+/58009

And changed the naming in:
https://gerrit.openbmc.org/c/openbmc/phosphor-pid-control/+/71460

Change-Id: Iee6a12c9f3510fb9ba4a886c071cd85a358156e5
Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>
diff --git a/schemas/pid.json b/schemas/pid.json
index 2db98c7..cd5898f 100644
--- a/schemas/pid.json
+++ b/schemas/pid.json
@@ -4,6 +4,9 @@
         "Pid": {
             "type": "object",
             "properties": {
+                "CheckHysteresisWithSetpoint": {
+                    "type": "boolean"
+                },
                 "Class": {
                     "type": "string"
                 },