Replace --include-cfi with --generate-debug-info.

This follows a change in dex2oat.

(cherry picked from commit f39477b592e6e17fe41ace2e18602a69b2dd1619)

Bug: 21924613
Change-Id: I46b61298ca00bee2e83080456b180d63efd95b8f
diff --git a/core/java/com/android/internal/os/Zygote.java b/core/java/com/android/internal/os/Zygote.java
index 4f6d781..c97fdf4 100644
--- a/core/java/com/android/internal/os/Zygote.java
+++ b/core/java/com/android/internal/os/Zygote.java
@@ -41,8 +41,8 @@
     public static final int DEBUG_ENABLE_JNI_LOGGING = 1 << 4;
     /** enable the JIT compiler */
     public static final int DEBUG_ENABLE_JIT         = 1 << 5;
-    /** Force generation of CFI code */
-    public static final int DEBUG_GENERATE_CFI       = 1 << 6;
+    /** Force generation of native debugging information. */
+    public static final int DEBUG_GENERATE_DEBUG_INFO = 1 << 6;
 
     /** No external storage should be mounted. */
     public static final int MOUNT_EXTERNAL_NONE = 0;