Allow ShortcutPackage#findAll to return cached shortcuts.

Previously cached shortcuts are filtered from the result when it isn't
pinned, which prevents them from being used by other system services.

Bug: 175051424
Test: atest com.android.server.pm.ShortcutManagerTest1
            com.android.server.pm.ShortcutManagerTest2
            com.android.server.pm.ShortcutManagerTest3
            com.android.server.pm.ShortcutManagerTest4
            com.android.server.pm.ShortcutManagerTest5
            com.android.server.pm.ShortcutManagerTest6
            com.android.server.pm.ShortcutManagerTest7
            com.android.server.pm.ShortcutManagerTest8
            com.android.server.pm.ShortcutManagerTest9
            com.android.server.pm.ShortcutManagerTest10
            com.android.server.pm.ShortcutManagerTest11
Change-Id: I59b9f867da6291f98ed1d05899fcc9080f47455e

services/core/java/com/android/server/pm/ShortcutPackage.java

@@ -737,7 +737,7 @@ class ShortcutPackage extends ShortcutPackageItem {
                     || ((pinnedByCallerSet != null) && pinnedByCallerSet.contains(si.getId()));
 
             if (!getPinnedByAnyLauncher) {
-                if (si.isFloating()) {
+                if (si.isFloating() && !si.isCached()) {
                     if (!isPinnedByCaller) {
                         continue;
                     }