drm/i915/display: Initialize capability variables

Initialize HDCP capability variables to false to avoid UBSAN
warning in boolean value as some functions invoking this could
return without filling the two capability values.

--v2
-Fix Typo [Chaitanya]
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240401030106.274787-2-suraj.kandpal@intel.com

drivers/gpu/drm/i915/display/intel_display_debugfs.c

@@ -191,7 +191,7 @@ static void intel_hdcp_info(struct seq_file *m,
 			    struct intel_connector *intel_connector,
 			    bool remote_req)
 {
-	bool hdcp_cap, hdcp2_cap;
+	bool hdcp_cap = false, hdcp2_cap = false;
 
 	if (!intel_connector->hdcp.shim) {
 		seq_puts(m, "No Connector Support");