feat(realm_payload): increase maximum number of RECs

This patch changes maximum number of RECs per realm
MAX_REC_COUNT from 8 to 17. This makes possible to
test calculation of REC's linear index from RmiRecMpidr
type which has [7:4] SBZ.

Change-Id: I9ab3d94f25b263b2672012ccbd6e632265a2a745
Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>
3 files changed