drivers/ddr/fsl: fsl_ddr_sdram_size remove unused controllers

Following commit 61bd2f75, exclude unused DDR controller from
calculating RAM size for SPL boot.

Signed-off-by: Ed Swarthout <Ed.Swarthout@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

drivers/ddr/fsl/main.c

@@ -857,6 +857,7 @@ fsl_ddr_sdram_size(void)
 	info.num_ctrls = CONFIG_SYS_FSL_DDR_MAIN_NUM_CTRLS;
 	info.dimm_slots_per_ctrl = CONFIG_DIMM_SLOTS_PER_CTLR;
 	info.board_need_mem_reset = NULL;
+	remove_unused_controllers(&info);
 
 	/* Compute it once normally. */
 	total_memory = fsl_ddr_compute(&info, STEP_GET_SPD, 1);