regression: loader: Reserve some more memory to cover the native ole32 addresses.

[Markus Amsler]

commit 8d833ee2e7a1d8b82e2dccf51e0cbc20742a0833
Author: Alexandre Julliard <julliard at winehq.org>
Date:   Thu Jun 25 14:19:09 2009 +0200

    loader: Reserve some more memory to cover the native ole32 addresses.

After this commit WoW with mesa/r500 falls back to indirect rendering. 
libGL tries to mmap 256M for the framebuffer but that fails with
 > libGL error: drmMap of framebuffer failed (Cannot allocate memory)

Markus