ANDROID: GKI: Update RTK STB KMI symbol list

INFO: 3 function symbol(s) added
  'int drm_of_encoder_active_endpoint(struct device_node*, struct drm_encoder*, struct of_endpoint*)'
  'int drm_of_lvds_get_dual_link_pixel_order(const struct device_node*, const struct device_node*)'
  'struct device_node* of_graph_get_port_by_id(struct device_node*, u32)'

Bug: 451891594
Change-Id: I444d83c5370c0774674e8ed2a7b888307642fd27
Signed-off-by: James Tai <james.tai@realtek.com>