drm/i915/hdcp: Use correct function to check if encoder is HDMI

Use intel_encoder_is_hdmi function which was recently introduced to
see if encoder is HDMI or not.

--v2
-Add Fixes tag [Jani]

Fixes: 6a3691c ("drm/i915/hdcp: Disable HDCP Line Rekeying for HDCP2.2 on HDMI")
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250117041247.1084381-1-suraj.kandpal@intel.com
(cherry picked from commit 2499212)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Author: surajk8

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

@@ -41,7 +41,7 @@ intel_hdcp_adjust_hdcp_line_rekeying(struct intel_encoder *encoder,
 	u32 rekey_bit = 0;
 
 	/* Here we assume HDMI is in TMDS mode of operation */
-	if (encoder->type != INTEL_OUTPUT_HDMI)
+	if (!intel_encoder_is_hdmi(encoder))
 		return;
 
 	if (DISPLAY_VER(display) >= 30) {