habanalabs: clear sobs and monitors in context switch

On context switch we need to ensure that each user is not be affected by
other user, so we need to clear sync objects and monitors in context
switch instead of in restore_phase_topology function.

Signed-off-by: Dalit Ben Zoor <dbenzoor@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>