drm/amd/display: fix incorrect check for atom table size

in case we have very few pins in the table, check fails and we can't boot
Signed-off-by: Tony Cheng <tony.cheng@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c

@@ -678,7 +678,7 @@ static enum bp_result bios_parser_get_gpio_pin_info(
 		return BP_RESULT_BADBIOSTABLE;
 
 	if (sizeof(struct atom_common_table_header) +
-			sizeof(struct atom_gpio_pin_lut_v2_1)
+			sizeof(struct atom_gpio_pin_assignment)
 			> le16_to_cpu(header->table_header.structuresize))
 		return BP_RESULT_BADBIOSTABLE;