localedata: fix LC_ADDRESS.country_car entries

These entries have been checked mostly against Wikipedia, but also using
the sources it cites (like the UN and other treaty sources).

Fix incorrect values:
  en_BW:  changing RB to BW
  kl_GL:  changing GRO to KN
  km_KH:  changing LAO to KH
  my_MM:  changing BA to MYA
  oc_FR:  changing F to F
  tr_CY:  changing TR to CY
  wae_CH: changing DH to CH

Add missing entries:
  aa_DJ:  changing to DJI
  ak_GH:  changing to GH
  ar_OM:  changing to OM
  ar_SS:  changing to SUD
  ar_YE:  changing to YAR
  bo_CN:  changing to CHN
  cmn_TW: changing to RC
  dv_MV:  changing to MV
  dz_BT:  changing to BHT
  en_AG:  changing to AG
  es_HN:  changing to HN
  es_PR:  changing to PR
  hak_TW: changing to RC
  lzh_TW: changing to RC
  nan_TW: changing to RC
  nan_TW@latin: changing to RC
  nl_AW:  changing to AUA
  pap_AW: changing to AUA
  so_DJ:  changing to DJI
  the_NP: changing to NEP
  ug_CN:  changing to CHN
  yue_HK: changing to HK
  zh_CN:  changing to CHN
  zh_HK:  changing to HK
  zh_TW:  changing to RC