[ARC] Cleanup A5 references

[Claudiu Zissulescu]

This patch cleans up the references to obsolete A5 processor.

Can this be committed?

Thanks,
Claudiu


2015-08-20  Claudiu Zissulescu  <claz...@synopsys.com>

        * common/config/arc/arc-common.c, config/arc/arc-opts.h,
        config/arc/arc.c, config/arc/arc.h, config/arc/arc.md,
        config/arc/arc.opt, config/arc/constraints.md,
        config/arc/t-arc-newlib: Remove references to A5.

patchCleanUpA5
Description: patchCleanUpA5