[SYCL][E2E] Fix target in host-task-two-queues (#19934)
This commit fixes the target for accessors used in a host_task from
implicit target::device to explicit target::host_task.
Additionally, this PR removes the S = sycl alias and replaces the use of
the old access::mode enum with the newer access_mode enum.
Signed-off-by: Larsen, Steffen <steffen.larsen@intel.com>
