drm/amd/powerplay: move those operations not needed for resume out

Since smu_smc_table_hw_init() is needed for both .hw_init and .resume.
By doing this, we can drop unnecessary operations on resume.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>