graphics/: Fix some errors found test last per-window framebuffer logic (without framebuffers).

graphics/nxbe/nxbe_fill.c

@@ -216,6 +216,6 @@ void nxbe_fill(FAR struct nxbe_window_s *wnd,
 
       /* Rend the bitmap directly to the graphics device in any case */
 
-       nxbe_fill_dev(wnd, rect, color);
+       nxbe_fill_dev(wnd, &remaining, color);
     }
 }

graphics/nxbe/nxbe_getrectangle.c

@@ -114,6 +114,7 @@ static inline void nxbe_getrectangle_dev(FAR struct nxbe_window_s *wnd,
  *
  ****************************************************************************/
 
+#ifdef CONFIG_NX_RAMBACKED
 static inline void nxbe_getrectangle_pwfb(FAR struct nxbe_window_s *wnd,
                                           FAR const struct nxgl_rect_s *rect,
                                           unsigned int plane,
@@ -126,6 +127,7 @@ static inline void nxbe_getrectangle_pwfb(FAR struct nxbe_window_s *wnd,
 
   pplane->pwfb.getrectangle(wnd, rect, dest, deststride);
 }
+#endif
 
 /****************************************************************************
  * Public Functions

graphics/nxbe/nxbe_setsize.c

@@ -39,6 +39,8 @@
 
 #include <nuttx/config.h>
 
+#include <assert.h>
+
 #ifdef CONFIG_NX_RAMBACKED
 #  include <debug.h>
 #  include <string.h>