settings: Fix Payment Handler icon

This change fixes the icon for the Payment Handler site setting. This
icon was mistakenly set to "settings:bluetooth-scanning" in
https://crrev.com/c/2058064.

Change-Id: I092f85624d6442edbb1258ee3cc23fc90370d785
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2082907
Auto-Submit: Ovidio de Jesús Ruiz-Henríquez <odejesush@chromium.org>
Reviewed-by: dpapad <dpapad@chromium.org>
Commit-Queue: Ovidio de Jesús Ruiz-Henríquez <odejesush@chromium.org>
Cr-Commit-Position: refs/heads/master@{#746431}

chrome/browser/resources/settings/site_settings_page/site_settings_page.js

@@ -192,7 +192,7 @@ cr.define('settings', function() {
         route: 'SITE_SETTINGS_PAYMENT_HANDLER',
         id: Id.PAYMENT_HANDLER,
         label: 'siteSettingsPaymentHandler',
-        icon: 'settings:bluetooth-scanning',
+        icon: 'settings:payment-handler',
         enabledLabel: 'siteSettingsPaymentHandlerAllow',
         disabledLabel: 'siteSettingsPaymentHandlerBlock',
         shouldShow: () =>