testing/mylg: fix build and enable on ppc64le

Added -d flag in 'go get' command, otherwise it was trying to install
the package and build was failing.

testing/mylg/APKBUILD

@@ -2,10 +2,10 @@
 # Maintainer: Francesco Colista <fcolista@alpinelinux.org>
 pkgname=mylg
 pkgver=0.2.6
-pkgrel=0
+pkgrel=1
 pkgdesc="Network Diagnostic Tool"
 url="http://mylg.io"
-arch="all !ppc64le"
+arch="all"
 license="MIT"
 makedepends="go libpcap-dev"
 subpackages=""
@@ -15,7 +15,7 @@ builddir="$srcdir/$pkgname-$pkgver"
 build() {
 	cd "$builddir"
 	export GOPATH="$srcdir"
-	go get -v
+	go get -v -d
 	go build mylg.go
 }