ldmode=pie is not supported for the mips arch

reference:
https://github.com/docker/cli/pull/2507
4c99c81326

Signed-off-by: Xiaodong Liu <liuxiaodong@loongson.cn>

hack/dockerfile/install/install.sh

@@ -15,6 +15,15 @@ if [ -z "$TMP_GOPATH" ]; then
 else
 	export GOPATH="$TMP_GOPATH"
 fi
+case "$(go env GOARCH)" in
+	mips* | ppc64)
+		# pie build mode is not supported on mips architectures
+		export GO_BUILDMODE=""
+		;;
+	*)
+		export GO_BUILDMODE="-buildmode=pie"
+		;;
+esac
 
 dir="$(dirname $0)"