updated PID as per openmmoko PR

Author: jpconstantineau

src/boards/bluemicro/board.h

@@ -50,8 +50,8 @@
 #define BLEDIS_MODEL         "BlueMicro 840"
 
 //--------------------------------------------------------------------+
-// USB
-// Pending https://github.com/openmoko/openmoko-usb-oui/pull/20
+// USB PID from openmoko:
+// Approved PR https://github.com/openmoko/openmoko-usb-oui/pull/20
 //--------------------------------------------------------------------+
 #define USB_DESC_VID           0x1d50
 #define USB_DESC_UF2_PID       0x6160