For KIWI platform FST reside in CMEM. CMEM address is known at the
init time from platform driver. Use 16K of CMEM address for FST.
Increase MAX FISA FST entry size to 256, which is allowed max size with
16K of CMEM allocation for FISA FST.
Change-Id: I395ab884b9cc761ed3c4438434475d6f9908a62b
CRs-Fixed: 3199251