Fix improper SIM Missing automatic navigation

* Properly allow the user to go backwards to prior to the SIM Missing
  page, if it had ever appeared and then a SIM became available.
* Ignore the activity result. Wizard remains on SIM Missing page until
  user chooses to leave or returns to wizard with SIM present.

Change-Id: I3edac6cbb03d76c66b04673d6104e98189ce365c

src/org/lineageos/setupwizard/util/SetupWizardUtils.java

@@ -264,7 +264,7 @@ public class SetupWizardUtils {
         } else {
             disableComponent(context, ScreenLockActivity.class);
         }
-        if (!hasTelephony(context) || !simMissing(context)) {
+        if (!hasTelephony(context)) {
             disableComponent(context, SimMissingActivity.class);
         }
         if ((!hasWifi(context) && !hasTelephony(context)) ||