Add Usb Hid class request type into IndustryStandard/Usb.h, and replace the hard value in UefiUsbLib by them.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5834 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Include/IndustryStandard/Usb.h

@@ -170,6 +170,7 @@ typedef enum {
   USB_DESC_TYPE_INTERFACE = 0x04,
   USB_DESC_TYPE_ENDPOINT  = 0x05,
   USB_DESC_TYPE_HID       = 0x21,
+  USB_DESC_TYPE_REPORT    = 0x22,
 
   //
   // Features to be cleared by CLEAR_FEATURE requests
@@ -198,6 +199,17 @@ typedef enum {
 // HID constants definition, see HID rev1.0
 //
 
+//
+// HID standard GET_DESCRIPTOR request.
+//
+#define USB_HID_GET_DESCRIPTOR_REQ_TYPE  0x81
+
+//
+// HID specific requests.
+//
+#define USB_HID_CLASS_GET_REQ_TYPE       0xa1
+#define USB_HID_CLASS_SET_REQ_TYPE       0x21
+
 //
 // HID report item format
 //