LPC21xx: Unify lpc21isp calling for ul_usb1 based boards.

LPC21xx: Unify lpc21isp calling for ul_usb1 based boards.

The updated configurations still defaults to the old lpc21isp
version 1.39 with parameters order adapted for OMK build.

But new version can be used if

  make load-boot LPC21ISP_OLD_PARAM_ORDER=n

is used. Serial port defaults to /dev/ttyUSB0
but alternative can be selected by LPC_TTY=/dev/ttyS0
make variable.

Unconditional switch to the newer version is problematic
because lpc21isp 1.85 seems to not work reliable with
old LPC21xx targets when connected over FTDI.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>