drm/amdgpu: Add back JPEG to video caps for carrizo and newer

JPEG is not supported on Vega only.

Fixes: 0a6e7b06 ("drm/amdgpu: Remove JPEG from vega and carrizo video caps")
Signed-off-by: David Rosca <david.rosca@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 0f4dfe86)
Cc: stable@vger.kernel.org