Tag new Settings:cookies page as no-search

New cookies subpage was not tagged as no-search, so any search containing any substring of "cookies" would cause settings search to fail.

Bug: 1051418
Change-Id: I1d53d4fe8f7b0629b3dfc441412003c06a819af0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2052144
Commit-Queue: Sean Harrison <harrisonsean@chromium.org>
Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Cr-Commit-Position: refs/heads/master@{#741098}

chrome/browser/resources/settings/privacy_page/privacy_page.html

@@ -237,7 +237,7 @@
           </category-setting-exceptions>
         </settings-subpage>
       </template>
-      <template is="dom-if" route-path="/cookies">
+      <template is="dom-if" route-path="/cookies" no-search>
         <settings-subpage id="cookies" page-title="$i18n{cookiePageTitle}">
           <settings-cookies-page></settings-cookies-page>
         </settings-subpage>