Update ICU to 54.1 step 1

source/data/misc/windowsZones.txt

Index: source/data/misc/windowsZones.txt
diff --git a/source/data/misc/windowsZones.txt b/source/data/misc/windowsZones.txt
index cff712624051861f51e8e753273e32d0b2eace30..a26db639006ad2e620e2bc45e09bb5ba960232af 100644
--- a/source/data/misc/windowsZones.txt
+++ b/source/data/misc/windowsZones.txt
@@ -210,7 +210,6 @@ windowsZones:table(nofallback){
             }
             CU{"America/Havana"}
             HT{"America/Port-au-Prince"}
-            TC{"America/Grand_Turk"}
             US{
                 "America/New_York America/Detroit America/Indiana/Petersburg America/"
                 "Indiana/Vincennes America/Indiana/Winamac America/Kentucky/Monticell"
@@ -322,6 +321,11 @@ windowsZones:table(nofallback){
             001{"Africa/Tripoli"}
             LY{"Africa/Tripoli"}
         }
+        "Line Islands Standard Time"{
+            001{"Pacific/Kiritimati"}
+            KI{"Pacific/Kiritimati"}
+            ZZ{"Etc/GMT-14"}
+        }
         "Magadan Standard Time"{
             001{"Asia/Magadan"}
             RU{"Asia/Magadan Asia/Anadyr Asia/Kamchatka Asia/Srednekolymsk"}
@@ -476,6 +480,7 @@ windowsZones:table(nofallback){
             MS{"America/Montserrat"}
             PR{"America/Puerto_Rico"}
             SX{"America/Lower_Princes"}
+            TC{"America/Grand_Turk"}
             TT{"America/Port_of_Spain"}
             VC{"America/St_Vincent"}
             VG{"America/Tortola"}