Add libdrmdecrypt and sgx

These are copied from vendor/ti/proprietary/omap4 at SHA
73ff514f524f75b68d44e5a81ac29db3064c95f0.  Modify
mk files so that these are only built if
TARGET_BOARD_PLATFORM_VARIANT is ahh.  This is a
step toward moving phantasm over to hardware/ti/omap4-aah.

Change-Id: Ie3eb1702b01c45656caea48abf29d44829ea57b9
Signed-off-by: Mike J. Chen <mjchen@google.com>
18 files changed