Add documentation for Sensor.TYPE_PRESSURE

Change-Id: I634722a9a22946a1ae96c0b868af0c66d467a3a6
diff --git a/core/java/android/hardware/SensorEvent.java b/core/java/android/hardware/SensorEvent.java
index 91f0098..a3ce9f5 100644
--- a/core/java/android/hardware/SensorEvent.java
+++ b/core/java/android/hardware/SensorEvent.java
@@ -204,6 +204,12 @@
      * values[0]: Ambient light level in SI lux units
      * </ul>
      * 
+     * <h4>{@link android.hardware.Sensor#TYPE_PRESSURE Sensor.TYPE_PRESSURE}:</h4>
+     * <ul>
+     * <p>
+     * values[0]: Atmospheric pressure in hPa (millibar)
+     * </ul>
+     *
      * <h4>{@link android.hardware.Sensor#TYPE_PROXIMITY Sensor.TYPE_PROXIMITY}:
      * </h4>
      *