8014427: REGRESSION: closed/javax/imageio/plugins/bmp/Write3ByteBgrTest.java fails since 7u25 b09

Reviewed-by: prr

src/share/classes/java/awt/image/Raster.java

@@ -392,7 +392,8 @@ public class Raster {
             }
         }
         int banks = maxBank + 1;
-        int size = scanlineStride * (h - 1) + // fisrt (h - 1) scans
+        int size = maxBandOff +
+            scanlineStride * (h - 1) + // fisrt (h - 1) scans
             w; // last scan
 
         switch(dataType) {