drm/amd/include:cleanup vega10 smuio header files.

drivers/gpu/drm/amd/amdgpu/soc15.c

...ers/gpu/drm/amd/include/asic_reg/smuio/smuio_9_0_offset.h

...rs/gpu/drm/amd/include/asic_reg/smuio/smuio_9_0_sh_mask.h

...drm/amd/include/asic_reg/vega10/SMUIO/smuio_9_0_default.h