Update libcore/security to Harmony r823222.

Squashed commit of the following:

commit e3083dde77b71fa817c8a52d9edafcb6325cfc25
Author: Elliott Hughes <enh@google.com>
Date:   Fri Oct 9 13:10:11 2009 -0700

    security_dalvik

commit 0fc0101e5dbfb3e3044702579ab8087a4e07984a
Author: Elliott Hughes <enh@google.com>
Date:   Fri Oct 9 13:09:48 2009 -0700

    security_527399
260 files changed