[PATCH v4] Allow top-level Makefile to use arm-none-eabi toolchain

[Peter Stuge]

Peter Stuge wrote:
> > Anyway I reworked a little, so that HOST= can be used
> 
> But then I typoed it when it was used. Here's an update.

Maybe this is the winner? :)

After more good review and discussion with Sylvain the next version
will autodetect arm-elf-gcc and default to using arm-elf for prefix
if it is found. If not found will assume arm-none-eabi is available.


//Peter