HID: use hid_hw_request() instead of direct call to usbhid

This allows the hid drivers to be independent from the transport layer.

The patch was constructed by replacing all occurences of
usbhid_submit_report() by its hid_hw_request() counterpart.
Then, drivers not requiring USB_HID anymore have their USB_HID
dependency cleaned in the Kconfig file.

Finally, few drivers still depends on USB_HID. Many of them
are requiring the io wait callback. They are found in the next patch.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>

For the sensor-hub part:
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-ntrig.c b/drivers/hid/hid-ntrig.c
index 7757e82..b926592e 100644
--- a/drivers/hid/hid-ntrig.c
+++ b/drivers/hid/hid-ntrig.c
@@ -118,7 +118,7 @@
 	if (!report)
 		return -EINVAL;
 
-	usbhid_submit_report(hdev, report, USB_DIR_IN);
+	hid_hw_request(hdev, report, HID_REQ_GET_REPORT);
 	usbhid_wait_io(hdev);
 	return (int)report->field[0]->value[0];
 }
@@ -137,7 +137,7 @@
 	if (!report)
 		return;
 
-	usbhid_submit_report(hdev, report, USB_DIR_IN);
+	hid_hw_request(hdev, report, HID_REQ_GET_REPORT);
 }
 
 static void ntrig_report_version(struct hid_device *hdev)
@@ -938,7 +938,7 @@
 		/* Let the device settle to ensure the wakeup message gets
 		 * through */
 		usbhid_wait_io(hdev);
-		usbhid_submit_report(hdev, report, USB_DIR_IN);
+		hid_hw_request(hdev, report, HID_REQ_GET_REPORT);
 
 		/*
 		 * Sanity check: if the current mode is invalid reset it to