Cherry-Pick: regions: Correct ar region settings.

The 'ar' has too many timezone values and incorrect keyboard layout
data. As confirmed by I18N team and L10N team, update to simpler and
correct values.

BUG=chrome-os-partner:60041
TEST=./regions_unittest.py

Change-Id: I2382258a7dc5c3be571d81954649318ec8cc443d
Reviewed-on: https://chromium-review.googlesource.com/415652
Commit-Ready: Hung-Te Lin <hungte@chromium.org>
Tested-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Chih-Yu Huang <akahuang@chromium.org>
(cherry picked from commit 639a05b7adeaf9b093407569ff7553b6b5414cf9)
Reviewed-on: https://chromium-review.googlesource.com/418542
Tested-by: Ivy Jian <ivy_jian@compal.com>
Reviewed-by: YH Lin <yueherngl@chromium.org>
Commit-Queue: YH Lin <yueherngl@chromium.org>
diff --git a/regions/regions.py b/regions/regions.py
index f9370c1..8288f48 100755
--- a/regions/regions.py
+++ b/regions/regions.py
@@ -465,7 +465,10 @@
         'Uruguay', None, 216),
     Region(
         'tr', ['xkb:tr::tur', 'xkb:tr:f:tur'], 'Europe/Istanbul',
-        ['tr', 'en-GB'], _KML.ISO, 'Turkey', None, 224)]
+        ['tr', 'en-GB'], _KML.ISO, 'Turkey', None, 224),
+    Region(
+        'ar', 'xkb:latam::spa', 'America/Argentina/Buenos_Aires',
+        ['es-AR'], _KML.ANSI, 'Argentina', None, 251)]
 
 """A list of :py:class:`regions.Region` objects for
 all **confirmed** regions.  A confirmed region is a region whose
@@ -1079,16 +1082,6 @@
         'as', 'xkb:as::eng', 'Pacific/Pago_Pago', ['en-AS', 'sm', 'to'],
         _KML.ANSI, 'American Samoa', None, 250),
     Region(
-        'ar', 'xkb:ar::spa',
-        ['America/Argentina/Buenos_Aires', 'America/Argentina/Cordoba',
-         'America/Argentina/Salta', 'America/Argentina/Jujuy',
-         'America/Argentina/Tucuman', 'America/Argentina/Catamarca',
-         'America/Argentina/La_Rioja', 'America/Argentina/San_Juan',
-         'America/Argentina/Mendoza', 'America/Argentina/San_Luis',
-         'America/Argentina/Rio_Gallegos', 'America/Argentina/Ushuaia'],
-        ['es-AR', 'en', 'it', 'de', 'fr', 'gn'], _KML.ANSI, 'Argentina',
-        None, 251),
-    Region(
         'aw', 'xkb:aw::nld', 'America/Aruba', ['nl-AW', 'es', 'en'],
         _KML.ANSI, 'Aruba', None, 252),
     Region(