- merged several changes from XScale

- complain about identify_chain scan with all bits one (jtag communication problem)
- add 0x80000 as a valid size for lpc2000_v2 flash banks (previously only the user accessible 0x7d000 were valid)


git-svn-id: svn://svn.berlios.de/openocd/trunk@129 b42882b7-edfa-0310-969c-e2dbd0fdcd60