tee: core: copy user output parameter values to tee params

In use cases where the user supply buffer pointer and size of the output buffer
in output parameters, these values should be directly passed to the tee driver
rather than dropping them off at the core.

This is one of the common use case with Qualcomm TEE, where the return value
of the commands are send back in the output buffer pointer

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>