optee: sync secure world ABI headers

Update the header files describing the secure world ABI, both with and
without FF-A. The ABI is extended to deal with protected memory, but as
usual backward compatible.

Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>