drm/i915/audio: Add 810 MHz clock entries to dp_aud_n_m table

Expand the Maud/Naud table according to DP 1.4 spec to include entries for
810 MHz clock. This is required for audio to work with HBR3.

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180607192013.25872-1-radhakrishna.sripada@intel.com

drivers/gpu/drm/i915/intel_audio.c

@@ -59,6 +59,7 @@
  */
 
 /* DP N/M table */
+#define LC_810M	810000
 #define LC_540M	540000
 #define LC_270M	270000
 #define LC_162M	162000
@@ -99,6 +100,15 @@ static const struct dp_aud_n_m dp_aud_n_m[] = {
 	{ 128000, LC_540M, 4096, 33750 },
 	{ 176400, LC_540M, 3136, 18750 },
 	{ 192000, LC_540M, 2048, 11250 },
+	{ 32000, LC_810M, 1024, 50625 },
+	{ 44100, LC_810M, 784, 28125 },
+	{ 48000, LC_810M, 512, 16875 },
+	{ 64000, LC_810M, 2048, 50625 },
+	{ 88200, LC_810M, 1568, 28125 },
+	{ 96000, LC_810M, 1024, 16875 },
+	{ 128000, LC_810M, 4096, 50625 },
+	{ 176400, LC_810M, 3136, 28125 },
+	{ 192000, LC_810M, 2048, 16875 },
 };
 
 static const struct dp_aud_n_m *