Fix the visibility for disabled apps in settings

Bug: 30770664
Test: Manual -
1. Disable one app
2. Go to Settings -> Apps -> menu -> App permissions
3. to check the visibility of that app.

Don't show disabled app in the PermissionAppsFragment.

Change-Id: I0d97f7011c13c9a78e988901285f10ca9e5b2cd8
(cherry picked from commit 92c2b41b91bffcc5ef1dbbe37ef66720753180ad)
diff --git a/src/com/android/packageinstaller/permission/ui/handheld/PermissionAppsFragment.java b/src/com/android/packageinstaller/permission/ui/handheld/PermissionAppsFragment.java
index 1a21f2d..e8c290e 100644
--- a/src/com/android/packageinstaller/permission/ui/handheld/PermissionAppsFragment.java
+++ b/src/com/android/packageinstaller/permission/ui/handheld/PermissionAppsFragment.java
@@ -195,6 +195,10 @@
                 continue;
             }
 
+            if (!app.getAppInfo().enabled) {
+                continue;
+            }
+
             String key = app.getKey();
             preferencesToRemove.remove(key);
             Preference existingPref = screen.findPreference(key);