spd: trusty: Put trusty_shmem_objs_data in its own section

This allows using a linker to script to put this potentially
large array in a separate memory region. By default it will
still be included in .bss

Bug: 206813454
Test: build, boot
Change-Id: I5025cfed0bf0fb9ab501ac54e18963ad540e873b
1 file changed