board_f: Modify DRAM message

The message "DRAM:  2 GiB (effective 32 GiB)" can be a little confusing,
modify the message s/effective/total to make it more evident.

Signed-off-by: Neha Malcom Francis <n-francis@ti.com>

common/board_f.c

@@ -254,7 +254,7 @@ static int show_dram_config(void)
 
 	print_size(gd->ram_size, "");
 	if (!sizes_near(gd->ram_size, size)) {
-		printf(" (effective ");
+		printf(" (total ");
 		print_size(size, ")");
 	}
 	board_add_ram_info(0);