"flash banks" is now implemented in Tcl on top of "flash_banks". openocd_throw...

"flash banks" is now implemented in Tcl on top of "flash_banks". openocd_throw prefix is no longer required when executing OpenOCD commands from tcl.

git-svn-id: svn://svn.berlios.de/openocd/trunk@779 b42882b7-edfa-0310-969c-e2dbd0fdcd60