drm/amdgpu: add vcn ip block for navy_flounder

Add vcn3.0 and jpeg3.0 ip blocks for navy_flounder

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>