drm/amdgpu/jpeg: add jpeg support for VCN4_0_3

Add jpeg support for VCN4_0_3.

v2: squash in delayed work typo fix (Alex)

Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>