soc: ti: knav_qmss_queue: Use list_for_each_entry_safe to prevent use after free

list_for_each_entry_safe() is necessary if list objects are deleted from
the list while traversing it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>