h2load: Fix npn defualt list
h2load: Fix npn defualt list

serioussam/nghttp2,serioussam/nghttp2,serioussam/nghttp2,thinred/nghttp2,wzyboy/nghttp2,wzyboy/nghttp2,wzyboy/nghttp2,serioussam/nghttp2,serioussam/nghttp2,thinred/nghttp2,icing/nghttp2,icing/nghttp2,icing/nghttp2,wzyboy/nghttp2,icing/nghttp2,icing/nghttp2,thinred/nghttp2,serioussam/nghttp2,thinred/nghttp2,thinred/nghttp2,wzyboy/nghttp2,icing/nghttp2,wzyboy/nghttp2,thinred/nghttp2,thinred/nghttp2,wzyboy/nghttp2,serioussam/nghttp2,icing/nghttp2