feat(intel): update to support maximum response data size

Update to support maximum (4092 bytes) response data size.
And, clean up the intel_smc_service_completed function to
directly write the response data to addr to avoid additional
copy.

Signed-off-by: Siew Chin Lim <elly.siew.chin.lim@intel.com>
Signed-off-by: Boon Khai Ng <boon.khai.ng@intel.com>
Signed-off-by: Sieu Mun Tang <sieu.mun.tang@intel.com>
Change-Id: I0a230e73c563d22e6999ad3473587b07382dacfe