Fix invalid password validation

Bug: Success toast message appeared on invalid value of new password
on profile settings page.

Solution: Fixed the toast message for password change and timezone
change respectively.

Signed-off-by: Sandeepa Singh <sandeepa.singh@ibm.com>
Change-Id: I71b53dd02e4fdda040248c3ed9408be8d220454d
diff --git a/src/locales/en-US.json b/src/locales/en-US.json
index a66c375..40d6553 100644
--- a/src/locales/en-US.json
+++ b/src/locales/en-US.json
@@ -631,7 +631,7 @@
     "timezoneDisplayDesc": "Select how time is displayed throughout the application",
     "username": "Username",
     "toast": {
-      "successSaveSettings": "Successfully saved account settings."
+      "successUpdatingTimeZone": "Timezone updated successfully."
     }
   },
   "pageNetwork": {