This commit makes two changes:
1. Boost changed its taxonomy for architecture names between the 1.77 and
1.78 releases, in this commit:
6edc8184a7
2. During the review of #161162 I [was asked about][1] the source of
the [mips64-context.patch][2] that I had included in the original
version of the PR. I searched through the boost-context revision
history and found [a nearly identical patch][3], which I
substituted in the final, merged version of the PR.
As it turns out, my [mips64-context.patch][2] was an earlier
revision of what was eventually accepted to boost-context. The
only difference between the two patches is the name they use:
mips64 vs mips1.
When switching to the accepted version of the boost patch, I should
have also updated libraries/boost/generic.nix to change mips64 to
mips1. This commit does that.
[1]: https://github.com/NixOS/nixpkgs/pull/161162#discussion_r847903087
[2]: https://raw.githubusercontent.com/a-m-joseph/nixpkgs/1ca5025945470ce96408552b9117674b12efaf04/pkgs/development/libraries/boost/mips64-context.patch
[3]: e3f744a186.patch
5952698e53