MDEV-30621: Türkiye is the correct current country naming

As requested to the UN the country formerly known as Turkey is
to be refered to as Türkiye.

Reviewer: Alexander Barkov

mysql-test/suite/plugins/r/locales.result

+SET names utf8;
 select * from information_schema.locales;
 ID	NAME	DESCRIPTION	MAX_MONTH_NAME_LENGTH	MAX_DAY_NAME_LENGTH	DECIMAL_POINT	THOUSAND_SEP	ERROR_MESSAGE_LANGUAGE
 0	en_US	English - United States	9	9	.	,	english
@@ -52,7 +53,7 @@ ID	NAME	DESCRIPTION	MAX_MONTH_NAME_LENGTH	MAX_DAY_NAME_LENGTH	DECIMAL_POINT	THOU
 49	ta_IN	Tamil - India	10	8	.	,	english
 50	te_IN	Telugu - India	10	9	.	,	english
 51	th_TH	Thai - Thailand	10	8	.	,	english
-52	tr_TR	Turkish - Turkey	7	9	,	.	english
+52	tr_TR	Turkish - Türkiye	7	9	,	.	english
 53	uk_UA	Ukrainian - Ukraine	8	9	,	.	ukrainian
 54	ur_PK	Urdu - Pakistan	6	6	.	,	english
 55	vi_VN	Vietnamese - Vietnam	16	11	,	.	english
@@ -165,7 +166,7 @@ Id	Name	Description	Error_Message_Language
 49	ta_IN	Tamil - India	english
 50	te_IN	Telugu - India	english
 51	th_TH	Thai - Thailand	english
-52	tr_TR	Turkish - Turkey	english
+52	tr_TR	Turkish - Türkiye	english
 53	uk_UA	Ukrainian - Ukraine	ukrainian
 54	ur_PK	Urdu - Pakistan	english
 55	vi_VN	Vietnamese - Vietnam	english

mysql-test/suite/plugins/t/locales.test

@@ -2,6 +2,7 @@ if (`select count(*) = 0 from information_schema.plugins where plugin_name = 'lo
 {
   --skip LOCALES plugin is not active
 }
+SET names utf8;
 
 select * from information_schema.locales;
 show locales;

sql/sql_locale.cc

@@ -1919,7 +1919,7 @@ MY_LOCALE my_locale_th_TH
 );
 /***** LOCALE END th_TH *****/
 
-/***** LOCALE BEGIN tr_TR: Turkish - Turkey *****/
+/***** LOCALE BEGIN tr_TR: Turkish - Türkiye *****/
 static const char *my_locale_month_names_tr_TR[13] = 
  {"Ocak","Şubat","Mart","Nisan","Mayıs","Haziran","Temmuz","Ağustos","Eylül","Ekim","Kasım","Aralık", NullS };
 static const char *my_locale_ab_month_names_tr_TR[13] = 
@@ -1940,7 +1940,7 @@ MY_LOCALE my_locale_tr_TR
 (
   52,
   "tr_TR",
-  "Turkish - Turkey",
+  "Turkish - Türkiye",
   FALSE,
   &my_locale_typelib_month_names_tr_TR,
   &my_locale_typelib_ab_month_names_tr_TR,