crt: Build import library for msvcrt40.dll

This is CRT runtime library for Visual C++ 4.0 (MSVC 10.00) and 4.1 (10.10).
It is present in every 32-bit x86 Windows as a system library.

msvcrt40.def file was generated from the original redistributable version
of Visual C++ 4.1 library.

Signed-off-by: LIU Hao <lh_mouse@126.com>