Searching mechanism for wilangid.vbs(commit 265cc578) doesn't work
after commit 7f4a622f("stop copying MSVC debug runtime DLLs").
That commit deleted $vsarch environment.
In configure,using $WINDWOS_SDK_ARCH instead of $vsarch will make it work
again(that is still set).

Change-Id: Ia45d30b2a724a36543038b14dd8defc3647ae455
Reviewed-on: https://gerrit.libreoffice.org/4935Reviewed-by: Jan Holesovsky <kendy@suse.cz>
Tested-by: Jan Holesovsky <kendy@suse.cz>