Multiple Target Failures for Multiple Definition of debug_printf

Hi

I reported this earlier but wanted to provide some more details.

Multiple architectures fail when linking gdb due to debug_printf()
being multiply defined.

The architectures are: bfin, h8300, lm32, mips, moxie, and v850.

The debug_printf() in gdb/common/common-debug.c is very
simple. But the one in sim/common/sim-trace.c is more
complicated and has awareness of the simulator state.
Thus they can't be folded into one method.

There are 7 calls to debug_printf() in the sim/ tree but 203
in the gdb/ tree.

This all leads me to believe that the solution is to change
the name of the debug_printf() in sim/ to something like
sim_debug_printf().

Thoughts?

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