moving math-emu

[Kumar Gala]

Paul,

I have a big patch that moves arch/ppc/math-emu to arch/powerpc/math- 
emu and fixes up the arch/ppc/Makefile.  How do you want me to send  
this to you since its too big for the list or can you just make this  
change since its:

1. git rename arch/ppc/math-emu arch/powerpc/math-emu
2. fixup arch/ppc/Makefile so:
     core-$(CONFIG_MATH_EMULATION)   += arch/powerpc/math-emu/

Let me know.

- kumar