David Brownell <david-b@pacbell.net> Fix formatting bug in at91sam7 doc added...

David Brownell <david-b@pacbell.net> Fix formatting bug in at91sam7 doc added with the at91sam3 support;
and some formatting issues with sam7 and stm32 keyword params.

Tweak at91sam3 docs.  Remove ninth nibble from flash bank addresses,
clarify "at91sam3 show" variants and that the flash bank layout is
not needed as a parameter (unlike with sam7); formatting fixes.

git-svn-id: svn://svn.berlios.de/openocd/trunk@2400 b42882b7-edfa-0310-969c-e2dbd0fdcd60