Added Linker configurations to LPC1857 (Please move manually to cpu/arm_cortexm3/u-boot.lds before compiling
Booting LPC1857 does not work, the only thing to make this work is using the u-boot.lds.try file and somehow get the compiler to switch to 32bit at start.
Configured MCB1800 SDRAM timings (small ajustments)
Small fixup