control:p10bmc:rainier-2u - Updated config values from thermal

Received multiple updated fan control configuration values related to
the thermal team's exercising of fan control.

Change-Id: I3cba182146a20b243ee958a1605d5cf9360b76ed
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
diff --git a/control/config_files/p10bmc/ibm,rainier-2u/zones.json b/control/config_files/p10bmc/ibm,rainier-2u/zones.json
index a87ae50..48e336a 100644
--- a/control/config_files/p10bmc/ibm,rainier-2u/zones.json
+++ b/control/config_files/p10bmc/ibm,rainier-2u/zones.json
@@ -1,8 +1,8 @@
 [
     {
         "name": "0",
-        "poweron_target": 17250,
-        "default_floor": 17250,
+        "poweron_target": 18000,
+        "default_floor": 18000,
         "increase_delay": 5,
         "decrease_interval": 30
     }