Separate the generic part of SP deployments

Move the non opteesp environment dependent code of SP deployments into
a separate directory and split CMake files into a generic and an
environment specific part.

Signed-off-by: Imre Kis <imre.kis@arm.com>
Change-Id: I4f09d6d3adef07644e98f2a05d6cb077a92b385b
54 files changed