Use new platform link to os.mbed.com
Use new platform link to os.mbed.com

Signed-off-by: iotvietmember <64fcad58a287264cd3695b53aa5ee0c110ddcd62@gmail.com>

sg-/DAPLink,google/DAPLink-port,google/DAPLink-port,sg-/DAPLink,sg-/DAPLink,google/DAPLink-port,google/DAPLink-port