CameraParameters: add PIXEL_FORMAT_RGBA8888

Change-Id: I2780e936f5b4628d506ac4e6947b78ef831fbde8
Signed-off-by: Iliyan Malchev <malchev@google.com>
diff --git a/include/camera/CameraParameters.h b/include/camera/CameraParameters.h
index dc5fc84..7992861 100644
--- a/include/camera/CameraParameters.h
+++ b/include/camera/CameraParameters.h
@@ -550,6 +550,7 @@
     static const char PIXEL_FORMAT_YUV422I[]; // YUY2
     static const char PIXEL_FORMAT_YUV420P[]; // YV12
     static const char PIXEL_FORMAT_RGB565[];
+    static const char PIXEL_FORMAT_RGBA8888[];
     static const char PIXEL_FORMAT_JPEG[];
 
     // Values for focus mode settings.