[EXPLORER] Start menu: Fix Small Icons flag (#6651)

Follow-up to #6646.
Fix wrong flag use: #6646 (comment)
JIRA issue: CORE-19494
- Delete SmallStartMenu flag (wrong) from
  _TW_STUCKRECTS2.
- Rename _TW_STUCKRECTS2.SmallIcons as
  SmSmallIcons.
- Use SmSmallIcons flag.

base/shell/explorer/startmnu.cpp

@@ -23,7 +23,8 @@
 HRESULT
 UpdateStartMenu(IN OUT IMenuPopup *pMenuPopup,
                 IN HBITMAP hbmBanner  OPTIONAL,
-                IN BOOL bSmallIcons)
+                IN BOOL bSmallIcons,
+                IN BOOL bRefresh)
 {
     CComPtr<IBanneredBar> pbb;
     HRESULT hRet;
@@ -37,6 +38,11 @@ UpdateStartMenu(IN OUT IMenuPopup *pMenuPopup,
         hRet = pbb->SetIconSize(bSmallIcons ? BMICON_SMALL : BMICON_LARGE);
     }
 
+    if (bRefresh)
+    {
+        FIXME("Refresh the Start menu with communicating with SHELL32\n");
+    }
+
     return hRet;
 }
 
@@ -97,7 +103,7 @@ CreateStartMenu(IN ITrayWindow *Tray,
     if (FAILED_UNEXPECTEDLY(hr))
         return NULL;
 
-    UpdateStartMenu(pMp, hbmBanner, bSmallIcons);
+    UpdateStartMenu(pMp, hbmBanner, bSmallIcons, FALSE);
 
     *ppMenuBand = pMb.Detach();