Bluetooth: Use kthread API in hidp

kernel_thread() is a low-level implementation detail and
EXPORT_SYMBOL(kernel_thread) is scheduled for removal.
Use the <linux/kthread.h> API instead.

Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/net/bluetooth/hidp/hidp.h b/net/bluetooth/hidp/hidp.h
index b412e71..12822cd 100644
--- a/net/bluetooth/hidp/hidp.h
+++ b/net/bluetooth/hidp/hidp.h
@@ -142,7 +142,7 @@
 	uint ctrl_mtu;
 	uint intr_mtu;
 
-	atomic_t terminate;
+	struct task_struct *task;
 
 	unsigned char keys[8];
 	unsigned char leds;