regions: Correct Bulgaria region settings.

Move 'bg' from unconfirm to confirm region.
Change 'en-GB' in default locale list to 'en-US' for region 'bg'.

BUG=b:79134992
TEST=./regions_unittest.py

Change-Id: I4504b752c39b3b39aaf0d9b0baf04917c60e9711
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform2/+/2755376
Reviewed-by: Marco Chen <marcochen@chromium.org>
Commit-Queue: Isaac Lee <isaaclee@google.com>
Tested-by: Isaac Lee <isaaclee@google.com>
diff --git a/regions/regions.py b/regions/regions.py
index 2062f13..40e706a 100755
--- a/regions/regions.py
+++ b/regions/regions.py
@@ -462,6 +462,10 @@
     Region(
         'jp.us', 'xkb:us::eng', 'Asia/Tokyo', 'ja', KML.ANSI,
         'Japan with US keyboard'),
+    Region(
+        'bg', ['xkb:bg::bul', 'xkb:bg:phonetic:bul'], 'Europe/Sofia', [
+            'bg', 'tr', 'en-US'], KML.ANSI,
+        'Bulgaria'),
     ]
 
 """A list of :py:class:`regions.Region` objects for
@@ -478,10 +482,6 @@
         'bf', 'xkb:bf::fra', 'Africa/Ouagadougou', 'fr-BF', KML.ANSI,
         'Burkina Faso'),
     Region(
-        'bg', ['xkb:bg::bul', 'xkb:bg:phonetic:bul'], 'Europe/Sofia', [
-            'bg', 'tr', 'en-GB'], KML.ANSI,
-        'Bulgaria'),
-    Region(
         'ba', 'xkb:ba::bos', 'Europe/Sarajevo', 'bs', KML.ANSI,
         'Bosnia and Herzegovina'),
     Region(