drm/amdgpu: increase MAX setting to hold more jpeg instances

vcn_v4_0_3 increased jpeg instances,
need increasing MAX resources setting accordlingly.

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