Fix the header file path

Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
Change-Id: I73a92a3f0049ecbda7eade452405927c04048e01

Enable the deprecated SPM framework for the SynQuacer platform.
It involves creating a memory layout in secure DRAM, and wiring
up the SPM infrastructure so that the secure partition payload
that is loaded into this region by the SCP firmware is dispatched
appropriately.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>