Merge pull request #3544 from Kiri2002/patch-1

add target for loongarch64

Author: JohnTitor

Cargo.toml

@@ -62,6 +62,7 @@ targets = [
     "i686-unknown-netbsd",
     "i686-unknown-openbsd",
     "i686-wrs-vxworks",
+    "loongarch64-unknown-linux-gnu",
     "mips-unknown-linux-gnu",
     "mips-unknown-linux-musl",
     "mips64-unknown-linux-gnuabi64",