build: fix zipfile name

Test Plan: None

Reviewers: Mustaavalkosta, michyprima, rlasalle15, randall.rushing, synergy

Reviewed By: synergy

Differential Revision: http://review.codefirex.com/D229

Change-Id: Ic63c3a1b728e96972925fa9b2c9d4af022760b0d