Move RustSBI project to RustSBI foundation

Cargo.toml

@@ -3,7 +3,7 @@ name = "rustsbi"
 description = "Minimal RISC-V's SBI implementation library in Rust"
 version = "0.2.0-alpha.3"
 authors = ["luojia65 <[email protected]>"]
-repository = "https://github.com/luojia65/rustsbi"
+repository = "https://github.com/rustsbi/rustsbi"
 documentation = "https://docs.rs/rustsbi"
 license = "MulanPSL-2.0 OR MIT"
 readme = "README.md"