rcar: Fix CMake build

Created by: girishpathak

Below updates to product/rcar has broken the CMake build.

https://github.com/ARM-software/SCP-firmware/pull/442

This commit fixes this.

There are various changes that caused the build break, Mainly see below

Renames: rcar_mock_pmic to rcar_mock_pmic_bd9571 rcar_pd_pmic to rcar_pd_pmic_bd9571

New modules: rcar_ext_clock

And related modifications to other modules. See commit log for changed files for this commit.

Change-Id: I1c158839512e970007cb5dad99e68154dc5c1aa0 Signed-off-by: Girish Pathak girish.pathak@arm.com