Adjust A11y Shortcut settings to use lowercase shortcut names.

Per go/android-naming these strings should be lowercase when
used in the middle of a sentence because they are generic
descriptive names and not branded names.

Bug: none
Change-Id: I0508a5cbdba20a1bd2d6db66e0e7183845e503ad
Test: build & install & check string
Flag: EXEMPT low risk bugfix

src/com/android/settings/accessibility/AccessibilityButtonPreferenceController.java

@@ -31,6 +31,7 @@ import com.android.settings.core.BasePreferenceController;
 import com.android.settingslib.search.SearchIndexableRaw;
 
 import java.util.List;
+import java.util.Locale;
 
 /**
  * Preference controller for accessibility button preference.
@@ -67,7 +68,8 @@ public class AccessibilityButtonPreferenceController extends BasePreferenceContr
         } else {
             return mContext.getString(
                     R.string.accessibility_shortcut_unassigned_setting_unavailable_summary,
-                    AccessibilityUtil.getShortcutSummaryList(mContext, SOFTWARE));
+                    AccessibilityUtil.getShortcutSummaryList(mContext, SOFTWARE)
+                            .toString().toLowerCase(Locale.getDefault()));
         }
     }
 

src/com/android/settings/accessibility/HardwareShortcutFromLockscreenPreferenceController.java

@@ -31,6 +31,8 @@ import androidx.preference.Preference;
 import com.android.settings.R;
 import com.android.settings.core.TogglePreferenceController;
 
+import java.util.Locale;
+
 /**
  * Setting to allow the hardware shortcut to turn on from the lock screen
  */
@@ -87,7 +89,8 @@ public class HardwareShortcutFromLockscreenPreferenceController
         } else {
             return mContext.getString(
                     R.string.accessibility_shortcut_unassigned_setting_unavailable_summary,
-                    AccessibilityUtil.getShortcutSummaryList(mContext, HARDWARE));
+                    AccessibilityUtil.getShortcutSummaryList(mContext, HARDWARE)
+                            .toString().toLowerCase(Locale.getDefault()));
         }
     }