This is supposed to replace big part of armv7m_trace.[ch], since
TPIU is not only the one implemented in Cortex-M3 and M4.
Change-Id: I7588d16cbefe9cdb371c52fb0aa5cdfb48518804
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5858
Tested-by: jenkins
