Fix javadoc for TYPE_INT_BOOLEAN

In practice, the only guarantee is that the value is zero if, and only
if, the represented boolean is false.

Bug: b/205124386
Flag: DOCS_ONLY
Test: Presubmit
Change-Id: I6cf12449597b048e6feebf803d291b88966a6233
diff --git a/core/java/android/util/TypedValue.java b/core/java/android/util/TypedValue.java
index 330a9fc..9668b6ad 100644
--- a/core/java/android/util/TypedValue.java
+++ b/core/java/android/util/TypedValue.java
@@ -65,10 +65,11 @@
     /** The <var>data</var> field holds a number that was
      *  originally specified in hexadecimal (0xn). */
     public static final int TYPE_INT_HEX = 0x11;
-    /** The <var>data</var> field holds 0 or 1 that was originally
-     *  specified as "false" or "true". */
+    /**
+     * {@link #data} holds 0 to represent {@code false}, or a value different from 0 to represent
+     * {@code true}.
+     */
     public static final int TYPE_INT_BOOLEAN = 0x12;
-
     /** Identifies the start of integer values that were specified as
      *  color constants (starting with '#'). */
     public static final int TYPE_FIRST_COLOR_INT = 0x1c;