smem.h : Change array size to avoid buffer overflow

Increase size of array from 128 to SMEM_LAST_VALID_TYPE
to allow access to index value SMEM_BOOT_INFO_FOR_APPS
in function get_boot_info_apps

CRs-Fixed: 313358

Change-Id: Ia086a5a4f38ee09bf05beff7804c26faca013b26
1 file changed