spec: revert the framerate change back to 4
spec: revert the framerate change back to 4

Change-Id: If9371cb5e6821c863aaac9a6ecf85a2290fc2a78
Reviewed-on: https://gerrit.instructure.com/196923
Reviewed-by: Gentry Beckmann <f487939f789774cca922ca5b886632de73477ea0@instructure.com>
Tested-by: Jenkins
QA-Review: James Butters <4c5a489c9bb72d41f20b3b22aaf4c9b864e32f20@instructure.com>
Product-Review: James Butters <4c5a489c9bb72d41f20b3b22aaf4c9b864e32f20@instructure.com>

djbender/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,djbender/canvas-lms