all: update golang.org/x/tools to v0.27.0

all: update golang.org/x/tools to v0.27.0

Commands run:
	cd $GOROOT/src/cmd
	go get golang.org/x/tools@v0.27.0
	go mod tidy
	go mod vendor

Needed for CL 623475. Introduced ABIInternal syscall support.

Change-Id: I03d7576747826243c25658f360b24ef9b84f0f04
Reviewed-on: https://go-review.googlesource.com/c/go/+/620738
Reviewed-by: Meidan Li <limeidan@loongson.cn>
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: David Chase <drchase@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>