Fix below sparse warning:
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn314/dcn314_optc.c:244:18: warning: Initializer entry defined twice
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn314/dcn314_optc.c:257:18:   also defined here

Fixes: 5ade1b95 ("drm/amd/display: Add OTG/ODM functions")
Signed-off-by: Liu Jian <liujian56@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>