refactor(cactus): map boot information regions

Map the boot contents regions and add optional mapping for boot info
descriptor contents depending on whether they will be accessed.

Signed-off-by: J-Alves <joao.alves@arm.com>
Signed-off-by: Kathleen Capella <kathleen.capella@arm.com>
Change-Id: I3dcbff07e9ee33008fa7f64fc74b06a1c42aa5dd
1 file changed