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Copy flags to support PnP stop directive

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The Plug and Play (PnP) stop directive file section flag is required for the Windows Display Driver Model (WDDM) to support driver upgrades that don't require a reboot.

Note   This is required only for the user-mode driver binaries, not for the kernel-mode driver entry.

For example:

;
; File sections
;

[r200.Miniport]
r200.sys

[r200.Display]
r200umd.dll,,,0x00004000             ; COPYFLG_IN_USE_TRY_RENAME
r200umd2.dll,,,0x00004000           ; COPYFLG_IN_USE_TRY_RENAME