This change adds JTAG transport in pass-through mode to the cmsis-dap driver. The patch is originally from Phillip Pearson <pp@myelin.co.nz>, with additions by Maksym Hilliaka <oter@frozen-team.com> Change-Id: I88d918d6576e9d875c3b611f29f255581e6a5424 Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com> Reviewed-on: http://openocd.zylin.com/3568 Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com> Tested-by: jenkins