oleaut32/olepicture: Fix a typo in height conversion.

dlls/oleaut32/olepicture.c

@@ -216,7 +216,7 @@ static void OLEPictureImpl_SetBitmap(OLEPictureImpl *This)
   hdcRef = CreateCompatibleDC(0);
 
   This->himetricWidth  = xpixels_to_himetric(bm.bmWidth, hdcRef);
-  This->himetricHeight = xpixels_to_himetric(bm.bmHeight, hdcRef);
+  This->himetricHeight = ypixels_to_himetric(bm.bmHeight, hdcRef);
 
   DeleteDC(hdcRef);
 }