[PATCH] ntdll: Use a cached version of LDR_MODULE flags for InitDLL.

[Myah Caron]

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=48817
Signed-off-by: Myah Caron <qsniyg(a)mail.com>
---
v3: The patch should hopefully apply now, thanks to Tk-Glitch.
Supersedes "Don't fail if LDR_MODULE.Flags is modified during load"