[PATCH] powerpc: Rearrange little endian specific files

[Gabriel F. T. Gomes]

On Tue, 14 Aug 2018, Rajalakshmi Srinivasaraghavan wrote:

>This patch moves little endian specific POWER9 optimization files to
>sysdeps/powerpc/powerpc64/le and creates POWER9 ifunc functions
>only for little endian.

Looks good to me.