cmd/compile,cmd/internal,runtime: change registers on loong64 to avoid regABI arguments

cmd/compile,cmd/internal,runtime: change registers on loong64 to avoid regABI arguments

Update #40724

Co-authored-by: Xiaolin Zhao <zhaoxiaolin@loongson.cn>
Change-Id: Ic7e2e7fb4c1d3670e6abbfb817aa6e4e654e08d3
Reviewed-on: https://go-review.googlesource.com/c/go/+/521777
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Meidan Li <limeidan@loongson.cn>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Auto-Submit: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: David Chase <drchase@google.com>