Add NDK API AThermal_getThermalHeadroomThresholds

Bug: b/288119641
Test: atest NativeThermalUnitTestCases
Change-Id: I2ba820da74b290a25ff1edf8d278b9200dfaf950
diff --git a/native/android/TEST_MAPPING b/native/android/TEST_MAPPING
index fd394fc..7c71098 100644
--- a/native/android/TEST_MAPPING
+++ b/native/android/TEST_MAPPING
@@ -22,5 +22,15 @@
        ],
        "file_patterns": ["performance_hint.cpp"]
     }
+  ],
+  "postsubmit": [
+    {
+      "name": "CtsThermalTestCases",
+       "file_patterns": ["thermal.cpp"]
+    },
+    {
+      "name": "NativeThermalUnitTestCases",
+       "file_patterns": ["thermal.cpp"]
+    }
   ]
 }