monitor: Fix decoding Command Complete for Remove ISO Data path

monitor: Fix decoding Command Complete for Remove ISO Data path

Before

< HCI Command: LE Remove Isochronous Data Path (0x08|0x006f) plen 3
        Connection Handle: 96
        Data Path Direction: Output (Controller to Host) (0x01)
> HCI Event: Command Complete (0x0e) plen 6
      LE Remove Isochronous Data Path (0x08|0x006f) ncmd 1
        invalid packet size
        00 60 00

After patch

< HCI Command: LE Remove Isochronous Data Path (0x08|0x006f) plen 3
        Connection Handle: 96
        Data Path Direction: 0x01
          Input (Host to Controller)
> HCI Event: Command Complete (0x0e) plen 6
      LE Remove Isochronous Data Path (0x08|0x006f) ncmd 1
        Status: Success (0x00)
        Connection handle: 96