msm: mdss: hdmi: hdcp encryption enablement
msm: mdss: hdmi: hdcp encryption enablement

For hdmi as primary case, enable encryption after
hdcp authentication passes. That is to avoid black
screen before authentication finishes.

Change-Id: I956066369dd7bae5794fe4c2751712293924cf54
Signed-off-by: Ken Zhang <f90f0f509d376d2c74c54f5d2ce2b72e9085adf0@codeaurora.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas