rpki: sort ROA results
rpki: sort ROA results

Sort the results in order of prefix, maxlen, as, and roa server.

Signed-off-by: FUJITA Tomonori <93dac1fe9c4b2a3957982200319981492ad4976e@lab.ntt.co.jp>

a16/gobgp,tamihiro/gobgp,a16/gobgp,a16/gobgp,osrg/gobgp,Dipsingh/gobgp,ishidawataru/gobgp,tamihiro/gobgp,h-naoto/gobgp,fujita/gobgp,ramrunner/gobgp,Dipsingh/gobgp,ramrunner/gobgp,a16/gobgp,tamihiro/gobgp,j-kato/gobgp,YujiOshima/gobgp,osrg/gobgp,osrg/gobgp,j-kato/gobgp,a16/gobgp,tamihiro/gobgp,ramrunner/gobgp,a16/gobgp,h-naoto/gobgp,Dipsingh/gobgp,h-naoto/gobgp,j-kato/gobgp,fujita/gobgp,a16/gobgp,YujiOshima/gobgp,ishidawataru/gobgp,fujita/gobgp,ishidawataru/gobgp,YujiOshima/gobgp,osrg/gobgp,fujita/gobgp