Build: Convert cypress targets to modern cmake

Add cmake files to cypress vendor directory. Alter scatter files to
remove preprocessor shebang. Alter header files where include paths have
changed.

WARNING: This change will not build in isolation, it requires _all_
other cmake changes to successfully build. It is split out only for ease
of understanding.

Change-Id: I5edfbe653927d897589ae20f320799368890e8d5
Signed-off-by: Raef Coles <raef.coles@arm.com>
6 files changed