drm/i915/hdcp: add hdcp sub-struct to struct intel_digital_port
Move hdcp_mutex, num_hdcp_streams, hdcp_auth_status, hdcp_port_data, and
hdcp_mst_type1_capable members of struct intel_digital_port under an
hdcp sub-struct to group hdcp related things together.
Rename them mutex, num_streams, auth_status, port_data, and
mst_type1_capable for clarity.
Cc: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/9da4be57b068acd06dec8b93977f0a70627103d4.1740746939.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>