More XML compliance fixes for the .rbuild files by Marc Piulachs (marc DOT piulachs...

More XML compliance fixes for the .rbuild files by Marc Piulachs (marc DOT piulachs AT codexchange DOT net)
The added '<include base="ntoskrnl" root="intermediate">include</include>' line in "ntoskrnl.rbuild" was left out, as this include path is already added through the "ntoskrnl.h" precompiled header. (thanks to Hervé for figuring this out)
I applied patches 1904 and 1905 of the Bugzilla bug entry.

See issue #2649 for more details.

svn path=/trunk/; revision=29056