feat(ff-a): receive boot information

Prepare secure partitions to receive boot information:
- In the partition's manifest, the GP register to receive the address in,
and the list of boot information.
- Implemented function to dump boot information.
- Update generation of SP Layout file to include offsets for image and
partition manifest.
- Change partition manifest offsets to match the information in the
SP layout.

Signed-off-by: J-Alves <joao.alves@arm.com>
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I87d2b135379d535ccaa1a3a0a822e964cca47185
11 files changed