Another fix for PCH-less build in markup code.

Include wx/control.h to use wxControl::RemoveMnemonics() and
FindAccelInIndex().

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67075 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/markuptext.cpp

@@ -27,6 +27,7 @@
 
 #ifndef WX_PRECOMP
     #include "wx/gdicmn.h"
+    #include "wx/control.h"
     #include "wx/dc.h"
 #endif // WX_PRECOMP