Sync LinkPlayer Struct with pokeemerald

In pokefirered, the `LinkPlayer` struct used an 11-byte name field and puts extra link-related info in the last three bytes. pokeemerald separates these last three bytes into their own fields. This commit replicates how pokeemerald handles those fields.

Also renamed `IntlConvertLinkPlayerName` to pokeemerald's `ConvertLinkPlayerName` because I was there and noticed it.

src/cable_club.c

@@ -659,7 +659,7 @@ static void Task_StartWirelessCableClubBattle(u8 taskId)
             for (i = 0; i < GetLinkPlayerCount(); i++)
             {
                 gLinkPlayers[i] = *(struct LinkPlayer *)gBlockRecvBuffer[i];
-                IntlConvertLinkPlayerName(&gLinkPlayers[i]);
+                ConvertLinkPlayerName(&gLinkPlayers[i]);
                 ResetBlockReceivedFlag(i);
             }
             data[0] = 4;