[XboxKrnl/xconfig.cc] - Fixes and logging changes

- Adding more information in logs for easier debugging
- XamSetDashContext correction
- XCONFIG_USER_VIDEO_FLAGS reports widescreen when set in config by user
- XCONFIG_SECURED_AV_REGION reports proper values when set in config by user
- Added missing \n

src/xenia/kernel/xam/xam_ui.cc

@@ -1255,6 +1255,8 @@ DECLARE_XAM_EXPORT1(XamShowCommunitySessionsUI, kNone, kStub);
 dword_result_t XamSetDashContext_entry(dword_t value,
                                        const ppc_context_t& ctx) {
   ctx->kernel_state->dash_context_ = value;
+  kernel_state()->BroadcastNotification(
+      kXNotificationDvdDriveUnknownDashContext, 0);
   return 0;
 }