CLDR-14435 Fix mappings for BC cities without DST

Author: mattjohnsonpint

common/supplemental/windowsZones.xml

@@ -64,6 +64,7 @@ For terms of use, see http://www.unicode.org/copyright.html
 
 			<!-- (UTC-07:00) Arizona -->
 			<mapZone other="US Mountain Standard Time" territory="001" type="America/Phoenix"/>
+			<mapZone other="US Mountain Standard Time" territory="CA" type="America/Creston America/Dawson_Creek America/Fort_Nelson"/>
 			<mapZone other="US Mountain Standard Time" territory="MX" type="America/Hermosillo"/>
 			<mapZone other="US Mountain Standard Time" territory="US" type="America/Phoenix"/>
 			<mapZone other="US Mountain Standard Time" territory="ZZ" type="Etc/GMT+7"/>
@@ -81,7 +82,7 @@ For terms of use, see http://www.unicode.org/copyright.html
 
 			<!-- (UTC-07:00) Yukon -->
 			<mapZone other="Yukon Standard Time" territory="001" type="America/Whitehorse"/>
-			<mapZone other="Yukon Standard Time" territory="CA" type="America/Whitehorse America/Creston America/Dawson America/Dawson_Creek America/Fort_Nelson"/>
+			<mapZone other="Yukon Standard Time" territory="CA" type="America/Whitehorse America/Dawson"/>
 
 			<!-- (UTC-06:00) Central America -->
 			<mapZone other="Central America Standard Time" territory="001" type="America/Guatemala"/>