V4L/DVB (5462): Add Logitech ViewPort AV 100

Logitech ViewPort AV 100 has the same internals as Cisco VT Camera. 
Fixing Pwc driver to handle it properly. 
Also, fixed the comments for both cameras.
Thanks to Martin Rubli for pointing me this.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/pwc/pwc-if.c

@@ -95,8 +95,8 @@ static const struct usb_device_id pwc_device_table [] = {
 	{ USB_DEVICE(0x046D, 0x08B3) }, /* Logitech QuickCam Zoom (old model) */
 	{ USB_DEVICE(0x046D, 0x08B4) }, /* Logitech QuickCam Zoom (new model) */
 	{ USB_DEVICE(0x046D, 0x08B5) }, /* Logitech QuickCam Orbit/Sphere */
-	{ USB_DEVICE(0x046D, 0x08B6) }, /* Logitech (reserved) */
-	{ USB_DEVICE(0x046D, 0x08B7) }, /* Logitech (reserved) */
+	{ USB_DEVICE(0x046D, 0x08B6) }, /* Cisco VT Camera */
+	{ USB_DEVICE(0x046D, 0x08B7) }, /* Logitech ViewPort AV 100 */
 	{ USB_DEVICE(0x046D, 0x08B8) }, /* Logitech (reserved) */
 	{ USB_DEVICE(0x055D, 0x9000) }, /* Samsung MPC-C10 */
 	{ USB_DEVICE(0x055D, 0x9001) }, /* Samsung MPC-C30 */
@@ -1552,7 +1552,11 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id
 			type_id = 740; /* CCD sensor */
 			break;
 		case 0x08b7:
-		case 0x08b8:
+			PWC_INFO("Logitech ViewPort AV 100 webcam detected.\n");
+			name = "Logitech ViewPort AV 100";
+			type_id = 740; /* CCD sensor */
+			break;
+		case 0x08b8: /* Where this released? */
 			PWC_INFO("Logitech QuickCam detected (reserved ID).\n");
 			name = "Logitech QuickCam (res.)";
 			type_id = 730; /* Assuming CMOS */