Fixes for v5.19-rc5

- Fix to increment vsync_cnt before calling drm_crtc_handle_vblank so that
  userspace sees the value *after* it is incremented if waiting for vblank
  events
- Fix to reset drm_dev to NULL in dp_display_unbind to avoid a crash in
  probe/bind error paths
- Fix to resolve the smatch error of de-referencing before NULL check in
  dpu_encoder_phys_wb.c
- Fix error return to userspace if fence-id allocation fails in submit
  ioctl
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGvswNKdd02EYKYv5Zjv7f+mcqeWC7hHQ1SBjqYzN_ZHnA@mail.gmail.com