[fix bug 1254394] Add persona to csp-src headers.
[fix bug 1254394] Add persona to csp-src headers.

johngian/mozillians,mozilla/mozillians,johngian/mozillians,mozilla/mozillians,akatsoulas/mozillians,akatsoulas/mozillians,akatsoulas/mozillians,johngian/mozillians,fxa90id/mozillians,fxa90id/mozillians,johngian/mozillians,mozilla/mozillians,akatsoulas/mozillians,fxa90id/mozillians,fxa90id/mozillians,mozilla/mozillians