winsys/svga: fix display corruption after surface_init
Cherry-pick of commit f41848a9 to fix display corruption in KDE Fixes: ba37d408 ("svga: Performance fixes") Closes: #3599 (closed)
Cherry-pick of commit f41848a9 to fix display corruption in KDE Fixes: ba37d408 ("svga: Performance fixes") Closes: #3599 (closed)