drm/amd/powerplay: add function to write pptable for smu11 (v2)

Add smu_v11_0_write_pptable and smu_v11_0_copy_table_to_smc function for smu11.

v2: fix the build warning. (Ray)

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Kevin Wang <Kevin1.Wang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>