balloon: Remove BalloonEvtFileClose from the PAGE section
balloon: Remove BalloonEvtFileClose from the PAGE section

This is a redo of commit 7327107 which was overwritten by a bad
merge in 321c0da.

Original commit message:

  Commit 9b81256 added a call to WdfObjectAcquireLock which raises
  IRQL to DISPATCH_LEVEL, but BalloonEvtFileClose still resides in
  the PAGE section which requires IRQL <= APC_LEVEL to execute. This
  commit fixes it by removing the function from the section. The
  PAGED_CODE() macro - a bit of a misnomer because it checks IRQL
  at function entry only, so technically it is still correct - is
  removed also.

  This is part of a fix for BZ #1419785.

Signed-off-by: Ladi Prosek <727f16b97cf99ec0710180d99386e4875fb7e2eb@redhat.com>

vrozenfe/kvm-guest-drivers-windows,daynix/kvm-guest-drivers-windows,vrozenfe/kvm-guest-drivers-windows,YanVugenfirer/kvm-guest-drivers-windows,gnif/kvm-guest-drivers-windows,gnif/kvm-guest-drivers-windows,YanVugenfirer/kvm-guest-drivers-windows,vrozenfe/kvm-guest-drivers-windows,YanVugenfirer/virtio-win-arm,daynix/kvm-guest-drivers-windows,YanVugenfirer/kvm-guest-drivers-windows,daynix/kvm-guest-drivers-windows,virtio-win/kvm-guest-drivers-windows,virtio-win/kvm-guest-drivers-windows,ladipro/kvm-guest-drivers-windows,YanVugenfirer/kvm-guest-drivers-windows,vrozenfe/kvm-guest-drivers-windows,ladipro/kvm-guest-drivers-windows,virtio-win/kvm-guest-drivers-windows,YanVugenfirer/kvm-guest-drivers-windows,daynix/kvm-guest-drivers-windows,ladipro/kvm-guest-drivers-windows,YanVugenfirer/virtio-win-arm,vrozenfe/kvm-guest-drivers-windows,YanVugenfirer/virtio-win-arm,virtio-win/kvm-guest-drivers-windows,daynix/kvm-guest-drivers-windows,gnif/kvm-guest-drivers-windows,YanVugenfirer/virtio-win-arm,ladipro/kvm-guest-drivers-windows,virtio-win/kvm-guest-drivers-windows,gnif/kvm-guest-drivers-windows