include: uapi: add Kbuild entries for msm_hdmi_hdcp_mgr.h

Add Kbuild entries for msm_hdmi_hdcp_mgr.h to ensure that this
uapi header is copied out from display techpack path for
userspace clients to use after kernel compilation.

Change-Id: I0780a1eb9e85badabc58b172d46c73822c2210e3
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>

include/uapi/display/Kbuild

@@ -2,3 +2,4 @@
 
 header-y += media/
 header-y += drm/
+header-y += hdcp/

include/uapi/display/hdcp/Kbuild

@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note
+
+header-y += msm_hdmi_hdcp_mgr.h