habanalabs: make the reset code more consistent

In the hl_device_reset we ask about the hard_reset argument when we want to
differentiate between soft and hard reset, except for three places where
we use "from_hard_reset_thread". Replace one of those locations with the
hard_reset argument as it is guaranteed that if we reached to that
line in the code during hard_reset, it is from a kernel thread.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Tomer Tayar <ttayar@habana.ai>

drivers/misc/habanalabs/device.c

@@ -891,7 +891,7 @@ int hl_device_reset(struct hl_device *hdev, bool hard_reset,
 	 * can't really exit until all its CSs are done, which is what we
 	 * do in cs rollback
 	 */
-	if (from_hard_reset_thread)
+	if (hard_reset)
 		device_kill_open_processes(hdev);
 
 	/* Release kernel context */