drm/i915/fbc/cnl: Add GLK and CNL+ hardware tracking area

GLK and CNL+ supports a bigger FBC tracking area.

Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181205004823.30823-1-jose.souza@intel.com