drm/i915/bios: Define VBT block 51 (Fixed Set Mode Table) contents

Define the contents of VBT block 51 (Fixed Set Mode Table).
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503122449.27266-30-ville.syrjala@linux.intel.comReviewed-by: Jani Nikula <jani.nikula@intel.com>

drivers/gpu/drm/i915/display/intel_vbt_defs.h

@@ -179,6 +179,7 @@ enum bdb_block_id {
 	BDB_LFP_POWER			= 44,
 	BDB_EDP_BFI			= 45, /* 160+ */
 	BDB_CHROMATICITY		= 46, /* 169+ */
+	BDB_FIXED_SET_MODE		= 51, /* 172+ */
 	BDB_MIPI_CONFIG			= 52, /* 175+ */
 	BDB_MIPI_SEQUENCE		= 53, /* 177+ */
 	BDB_COMPRESSION_PARAMETERS	= 56, /* 213+ */
@@ -1385,6 +1386,16 @@ struct bdb_chromaticity {
 	struct chromaticity chromaticity[16];
 } __packed;
 
+/*
+ * Block 51 - Fixed Set Mode Table
+ */
+
+struct bdb_fixed_set_mode {
+	u8 enable;
+	u32 x_res;
+	u32 y_res;
+} __packed;
+
 /*
  * Block 52 - MIPI Configuration Block
  */