md settings: Update lock screen to match new mocks.

chrome/app/settings_strings.grdp

Index: chrome/app/settings_strings.grdp
diff --git a/chrome/app/settings_strings.grdp b/chrome/app/settings_strings.grdp
index cf146f50d8afa0f71484ecbe61a7185ab3d2eda9..1e2b71178b68b93a5ee8dc0740d4536cf93e666b 100644
--- a/chrome/app/settings_strings.grdp
+++ b/chrome/app/settings_strings.grdp
@@ -2289,6 +2289,9 @@
     <message name="IDS_SETTINGS_PEOPLE_LOCK_SCREEN_TITLE" desc="Text on the people page which opens up the quick unlock subpage and the title of the quick unlock subpage.">
       Screen lock
     </message>
+    <message name="IDS_SETTINGS_PEOPLE_LOCK_SCREEN_OPTIONS" desc="Text on the lock screen which is the subheader for the screen locking options.">
+      Screen lock options
+    </message>
     <message name="IDS_SETTINGS_PEOPLE_LOCK_SCREEN_PASSWORD_ONLY" desc="Only the account password can be used to unlock the device.">
       Password only
     </message>
@@ -2310,6 +2313,9 @@
     <message name="IDS_SETTINGS_PEOPLE_LOCK_SCREEN_EDIT_FINGERPRINTS_DESCRIPTION" desc="Secondary text on the lock screen which opens up the fingerprint subpage.">
       Set up a faster way to unlock your device
     </message>
+    <message name="IDS_SETTINGS_PEOPLE_LOCK_SCREEN_FINGERPRINT_SETUP_BUTTON" desc="Text on the lock screen button which opens up the fingerprint subpage.">
+      Set Up
+    </message>
     <message name="IDS_SETTINGS_PEOPLE_LOCK_SCREEN_NUM_FINGERPRINTS" desc="Text on the lock screen which tells users how many fingerprints they have enrolled.">
       <ph name="NUM_FINGERPRINTS">$1<ex>1</ex></ph> fingerprints set up
     </message>