Add tablet 5x8 grids

Bug: 364711064
Flag: com.android.launcher3.one_grid_rotation_handling
Test: n/a
Change-Id: I509a52f76852a2034020efc818bf571f00dff90d
diff --git a/src/com/android/launcher3/LauncherFiles.java b/src/com/android/launcher3/LauncherFiles.java
index 1148f79..95c0ee8 100644
--- a/src/com/android/launcher3/LauncherFiles.java
+++ b/src/com/android/launcher3/LauncherFiles.java
@@ -16,6 +16,7 @@
     private static final String XML = ".xml";
 
     public static final String LAUNCHER_DB = "launcher.db";
+    public static final String LAUNCHER_5_BY_8_DB = "launcher_5_by_8.db";
     public static final String LAUNCHER_6_BY_5_DB = "launcher_6_by_5.db";
     public static final String LAUNCHER_4_BY_5_DB = "launcher_4_by_5.db";
     public static final String LAUNCHER_4_BY_6_DB = "launcher_4_by_6.db";
@@ -35,6 +36,7 @@
 
     public static final List<String> GRID_DB_FILES = Collections.unmodifiableList(Arrays.asList(
             LAUNCHER_DB,
+            LAUNCHER_5_BY_8_DB,
             LAUNCHER_6_BY_5_DB,
             LAUNCHER_4_BY_5_DB,
             LAUNCHER_4_BY_6_DB,