SPM: Separate SPM data structure definitions

Currently IPC and library model use common SPM data structure
definitions in "spm_db.h". To prepare for SPM HAL data structure,
deleting head file "spm_db.h", separate and move SPM database
definitions from this file into individual head file of each
model.

Change-Id: Ieaedd0d136f62251239979d8223dd8710b910e7d
Signed-off-by: Mingyang Sun <mingyang.sun@arm.com>
8 files changed