[PATCH 14/21] ARC: Enable __start as entry point vs. canonical _start

[Florian Weimer]

* Vineet Gupta:

> ARC linker scripts have defined __start as entry point so to not break
> ABI for uClibc et al we allow __start for glibc as well

I think this change and the test suite fixes should be folded into the
initial addition of these files.  Or is there a reason for not doing
this?

Thanks,
Florian