[e2e] updated E2E list advisory board

[Joe Touch]

Hi, all,

Henning Schulzrinne and Scott Brim's terms as members of the
E2E-Interest email list Advisory Board have completed. Although we had
no significant email issues during that time, I would like to thank them
for offering their service.

I'd also like to welcome Fred Baker and Wes Eddy as new members to the
advisory board, hoping that their service is similarly uneventful.

Thanks to all,

Joe (as list admin)