commit dc4edad6 upstream.

CE ram size is 32k/0k/0k for GFX/CS0/CS1 with CIK

Ported from amdgpu driver.
Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>