microwatt/jtag_tap
Anton Blanchard 0f864ae8b9 Update JTAG TAP controller for Microwatt
Make a few changes to match what mw_debug expects:

- 6 byte instructions
- IDCODE at 001001
- microwatt debug at 000011

Also change IDCODE to be an IBM ID.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
..
tap_top.v Update JTAG TAP controller for Microwatt