msm: mdss: hdmi: Add supported 8084 HDMI version

Enable CEC (Consumer Electronics Control) for 8084 by adding
supported HDMI version while configuring CEC.

CRs-Fixed: 585634
Change-Id: Idfd1a7b5b48957ca0da9501d875bca0f6862500a
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>