habanalabs: fix hard reset print and comment

One of the first steps of a hard reset flow is to close all open user
contexts. This user process teradown might take some time due to long
cleanup in our driver or some other reason even before our cleanup flow.
Hence fix the relevant print and comment to be more accurate.

Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>