drm/amd/display: Rename a struct field to describe a cea component better

[why]
Need to fix the code so it does not use reserved keywords

[how]
Change the total_length member of the cea struct
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com>
Signed-off-by: Oliver Logush <oliver.logush@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

@@ -11308,7 +11308,7 @@ static bool dm_edid_parser_send_cea(struct amdgpu_display_manager *dm,
 		sizeof(cmd.edid_cea) - sizeof(cmd.edid_cea.header);
 	input->offset = offset;
 	input->length = length;
-	input->total_length = total_length;
+	input->cea_total_length = total_length;
 	memcpy(input->payload, data, length);
 
 	res = dc_dmub_srv_cmd_with_reply_data(dm->dc->ctx->dmub_srv, &cmd);

drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h

@@ -2404,7 +2404,7 @@ struct dmub_rb_cmd_lvtma_control {
 struct dmub_cmd_send_edid_cea {
 	uint16_t offset;	/**< offset into the CEA block */
 	uint8_t length;	/**< number of bytes in payload to copy as part of CEA block */
-	uint16_t total_length;  /**< total length of the CEA block */
+	uint16_t cea_total_length;  /**< total length of the CEA block */
 	uint8_t payload[DMUB_EDID_CEA_DATA_CHUNK_BYTES]; /**< data chunk of the CEA block */
 	uint8_t pad[3]; /**< padding and for future expansion */
 };