David Brownell <david-b@pacbell.net> More jtag_add_reset() cleanup:

Unify the handling of the req_tlr_or_trst parameter.  Basically,
JTAG TMS+TCK ops ("TLR") is always used ... unless TRST is a safe
option in this system configuration.

git-svn-id: svn://svn.berlios.de/openocd/trunk@2622 b42882b7-edfa-0310-969c-e2dbd0fdcd60