Update distinfo and unbreak this port

• While I'm here:
  • Add NO_ARCH
  • Fix indent
  • Add USES=php

Content of tarballs are unchanged (checked against [1]).

Reference: https://people.FreeBSD.org/~sunpoet/checksum/Net_UserAgent_Mobile-1.0.0RC1.tgz [1]
Approved by: portmgr (blanket)