Revert "Revert "openocd: Fix FTDI channel configuration for SheevaPlug""
Revert "Revert "openocd: Fix FTDI channel configuration for SheevaPlug""

This reverts commit b2623d3a9b5607b5f5e6dd6412fa134bd1875f8c. The revert
was an error since there was an override in my environment fetching a
more recent version of openocd.

NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs