Update QLocale::Country doc for new territories

Neglected in 44b6757fe5
Noted the need for this in a relevant script's instructions.

Change-Id: If69666f1799acebd434034c80b91056cb8777488
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/corelib/tools/qlocale.qdoc

@@ -568,6 +568,7 @@
     \value Estonia
     \value Ethiopia
     \value EuropeanUnion Since Qt 5.7
+    \value Europe Since Qt 5.12
     \value FalklandIslands
     \value FaroeIslands
     \value Fiji
@@ -619,6 +620,8 @@
     \value Kuwait
     \value Kyrgyzstan
     \value Laos
+    \value LatinAmerica
+    \value LatinAmericaAndTheCaribbean Obsolete, please use LatinAmerica
     \value Latvia
     \value Lebanon
     \value Lesotho
@@ -742,6 +745,7 @@
     \value UnitedStatesVirginIslands
     \value WallisAndFutunaIslands
     \value WesternSahara
+    \value World Since Qt 5.12
     \value Yemen
     \value Zambia
     \value Zimbabwe
@@ -749,7 +753,6 @@
     \value Serbia
     \value SaintBarthelemy
     \value SaintMartin
-    \value LatinAmericaAndTheCaribbean
     \value AscensionIsland
     \value AlandIslands
     \value DiegoGarcia

util/local_database/cldr2qlocalexml.py

@@ -38,7 +38,12 @@ command-line argument.  Save its standard output (but not error) to a
 file for later processing by ``./qlocalexml2cpp.py``
 
 When you update the CLDR data, be sure to also update
-src/corelib/tools/qt_attribution.json's entry for unicode-cldr.
+src/corelib/tools/qt_attribution.json's entry for unicode-cldr.  Check
+this script's output for unknown language, country or script messages;
+if any can be resolved, use their entry in common/main/en.xml to
+append new entries to enumdata.py's lists and update documentation in
+src/corelib/tools/qlocale.qdoc, adding the new entries in alphabetic
+order.
 
 .. _CLDR: ftp://unicode.org/Public/cldr/
 """