Change temp approximations to be accurate

We need to use a more accurate ratio of celsius to fahrenheit along
with better min/max temperature conversions so if a client sets the
value using standard conversion or using this table, they will produce
the same result.

Bug: 313720524
Test: atest CtsCarTestCases:CarPropertyManagerTest
Change-Id: I80a45962e7025c9c529381fd3522839f78bf413f
diff --git a/automotive/vehicle/aidl/impl/default_config/config/DefaultProperties.json b/automotive/vehicle/aidl/impl/default_config/config/DefaultProperties.json
index d3bb60c..ed5e75d 100644
--- a/automotive/vehicle/aidl/impl/default_config/config/DefaultProperties.json
+++ b/automotive/vehicle/aidl/impl/default_config/config/DefaultProperties.json
@@ -2368,9 +2368,9 @@
                 160,
                 280,
                 5,
-                600,
-                840,
-                10
+                608,
+                824,
+                9
             ]
         },
         {