camera: add iso parameter

Enable with BOARD_CAMERA_HAVE_ISO

From: jt1134 <jt1134@gmail.com>
Date: Mon, 17 Sep 2012 22:05:04 -0500
Subject: [PATCH] camera: add define for ISO settings

Change-Id: I8716a260ad552d3684197237c2055dce129e461e
---
diff --git a/include/camera/CameraParameters.h b/include/camera/CameraParameters.h
index 8846eca..63b452f 100644
--- a/include/camera/CameraParameters.h
+++ b/include/camera/CameraParameters.h
@@ -529,6 +529,11 @@
     // Example values: "lowlight,hdr".
     static const char KEY_LIGHTFX[];
 
+#ifdef HAVE_ISO
+    static const char KEY_SUPPORTED_ISO_MODES[];
+    static const char KEY_ISO_MODE[];
+#endif
+
 #ifdef SAMSUNG_CAMERA_HARDWARE
     static const char KEY_ANTI_SHAKE_MODE[];
     static const char KEY_METERING[];