fix(el3-spmc): only call spmc_shm_check_obj() on complete objects

When called on incomplete objects, it might fail or access uninitialized
memory. This allows simplifying spmc_shm_check_obj().

Change-Id: I7c11f15d4c8ebe8cd15e7d8c37a0d0f3daa83675
Signed-off-by: Demi Marie Obenour <demiobenour@gmail.com>
1 file changed