fix(xilinx): deprecate SiP service count query

As per SMCCC Section 6.2, the call count query for all the services
has been deprecated from SMCCC v1.2 onwards.

Inline with above change, AMD-Xilinx SiP service count query has
been deprecated and now onwards will return unknown function
identifier error.

Change-Id: I296d119d65549fdb01718d08351d255550e4ead0
Signed-off-by: Akshay Belsare <akshay.belsare@amd.com>
3 files changed