Pointed out by Gerhard Jaeger, 31 Aug 2005; cf. http://sourceware.org/ml/binutils/2005-08/msg00412.html
- rename CONFIG_BOOTBINFUNC into CONFIG_INIT_CRITICAL - rename memsetup into lowlevel_init (function name and source files)
- add u-boot.hex target in the top level Makefile - add support for the UNSW/NICTA PLEB 2 board (pleb2) - use -mtune=xscale and -march=armv5 options for PXA