drivers/misc/hdcp: load HDCP SRM app

Load the HDCP SRM app together with the HDCP 2.2 app as its
functionality is needed to validate the downstream client list.

Change-Id: I5be85464a49215934cc109f575231f1c70b7f955
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>