Log Message:
binutils: update to 2.40.

This release contains numerous bug fixes, and also the following new
features:

  * Support for more Intel, ARM, Risc-V architecture extensions.

  * Support for generating and reading compressed debug sections
    using the zstd compression format.

  * Support for the SFRAME unwind format.

  * Support for the CTF debug format.

  * The objdump tool now has an option to enhance its disassembly
    output by showing all of the symbols that match an address,
    instead of just the first symbol.

  * The objdump tool's disassembler is now also able to use colors to
    distinguish differents parts of each instruction.  This feature
    is only supported by a limited set of architectures at the
    moment.

  * The linker (ld) has a new command line option to disable the
    generation of warning and error messages.  This can be useful
    when it is known that the link will not be successful, but there
    is still a need to create a binary.