From 054e5084a4df555925a9aa0e5d10084e469dda6a Mon Sep 17 00:00:00 2001
From: Mathias Agopian <mathias@google.com>
Date: Fri, 20 Aug 2010 16:02:29 -0700
Subject: [PATCH] don't revert to ashmem if HW usage bits are set

this wouldn't make sense, since the h/w wouldn't be able
to use the buffer. in this case it it better to fail to
let the caller a change to try again with different usage bits.

Change-Id: Ibecaf069b6b58ee9c026affc95a45512660d5881