devel/binutils: Fix manpage generation after 2.37

A bug[1] upstream in 2.37 left empty man pages after build.
The downloaded distribution file comes with empty man pages too.

Apply patch from upstream[1] and force man page regeration by removing the ones
which come with the distribution.

[1] https://sourceware.org/bugzilla/show_bug.cgi?id=28144
[1] https://sourceware.org/bugzilla/show_bug.cgi?id=28144#c3

PR: 257982
Reported by: jbeich@