bootstrap: Add openssl configuration for sparc64-unknown-linux-gnu
Hi!
This adds the target missing mapping for sparc64-unknown-linux-gnu.
See: https://github.com/rust-lang/rust/issues/45456
Thanks
"powerpc64-unknown-linux-gnu" => "linux-ppc64",
"powerpc64le-unknown-linux-gnu" => "linux-ppc64le",
"s390x-unknown-linux-gnu" => "linux64-s390x",
+ "sparc64-unknown-linux-gnu" => "linux64-sparcv9",
"sparc64-unknown-netbsd" => "BSD-sparc64",
"x86_64-apple-darwin" => "darwin64-x86_64-cc",
"x86_64-linux-android" => "linux-x86_64",