[RefData][ORI] Fixed the details of a few POR after comparison with Geonames.
 * HIN/Sacheon, Korea (KR).
 * IAR/Yaroslavl, Russia (RU).
 * LZH/Bailian, China (CN).
 * MCN/Middle Georgia, Georgia (GA), USA.
 * PPW/Papa Westray, United Kingdom (GB).
 * ZHA/Zhanjiang, China (CN).
 * ZHO/Houston, British Columbia (BC), Canada (CA).