The rc_model_size is specified in the DSC config, and the hardware
programming should respect that instead of hard coding a value of 8192.

Regardless, the rc_model_size in DSC config is currently hard coded to
the same value, so this should have no impact, other than allowing the
use of other sizes as needed.

Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/27d86ad25832bbb985f6e996f3d02dca01a66895.1607429866.git.jani.nikula@intel.com