Revert "s3cfb: Fix S3CFB_SET_VSYNC_INT ioctl"

This reverts commit 7dfeb137b2b940446d5236ec231568a0e6966283.
Revert "Fix framebuffer driver compilation error"

This reverts commit c7b4ae5112b3b0d8a098808c1412030daefba298.
VIDEO: Sync with CM-KERNEL and SAMMY-STOCK. to fix some delays and more.

Now UI is much smoother.