libwine: Cast-qual warning fix #2

[Andrew Talbot]

Changelog:
    libwine: Cast-qual warning fix.

diff -urN a/libs/wine/loader.c b/libs/wine/loader.c
--- a/libs/wine/loader.c	2006-07-17 17:19:55.000000000 +0100
+++ b/libs/wine/loader.c	2006-08-22 20:10:44.000000000 +0100
@@ -362,7 +362,7 @@
 
     *nt = *nt_descr;
 
-    delta      = (BYTE *)nt_descr - addr;
+    delta      = (const BYTE *)nt_descr - addr;
     code_start = page_size;
     data_start = delta & ~page_mask;
     data_end   = (nt->OptionalHeader.SizeOfImage + delta + page_mask) & ~page_mask;