Use a command group 'jtag_vpi' with subcommands instead of individual
commands with 'jtag_vpi_' prefix.
The old commands are still available for backward compatibility but
marked as deprecated.
Change-Id: Ie1fcc2cc138796d27f1e862692bb9ef8b11bc10d
Signed-off-by: Marc Schink <dev@zapb.de>
Reviewed-on: http://openocd.zylin.com/6398
Tested-by: jenkins
Reviewed-by: Jan Matyas <matyas@codasip.com>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>