msm: mdss: hdmi: load hdcp1.x app only at bootup

Do not load hdcp1.x app at runtime and keep the app status for
future use. Whenever cable is connected and hdcp 1.x needs to
be started, just set keys using app. This avoids any possible
app load - unload issues in some corner cases.

Change-Id: Ic7f55ab74d6cb6b9ff654eb32c0bed8a44f70007
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>