DAS-3224DC rev.B, f/w version 2.47_b59

Release notes:

1) Fixed the system crash issue.
2) Fixed the the critical error appear when adding new PVC and DHCP
option82 addition during modification the DRA settings with LCT.
3) Added the function of DHCP relay with Vlan Translation both on CLI and LCT.
4) Added the function of increasing the MAC limit to 256 per dsl port.
When the total maclimit number of system has been set to be over 4000,
an error message will appear both on CLI and LCT.
5) Fixed the the critical error appear when adding new PVC and DHCP
option82 addition during modification the DRA settings with LCT.