David Brownell <david-b@pacbell.net>:

Dump SP on poll, and show whether it's MSP or PSP.

Thread mode can use either stack pointer, so this is
part of the state that's not yet displayed.

Shrink some lines.

git-svn-id: svn://svn.berlios.de/openocd/trunk@2555 b42882b7-edfa-0310-969c-e2dbd0fdcd60