pitx-imx8m: spl: show detected memory variant

Signed-off-by: Thomas Schaefer <thomas.schaefer@kontron.com>

board/kontron/pitx-imx8m/spl.c

@@ -42,6 +42,8 @@ static phys_size_t get_memory_variant(void)
 	variant = (gpio_get_value(IMX_GPIO_NR(5, 0)) |
 		   gpio_get_value(IMX_GPIO_NR(5, 1)) << 1 ) & 0x3;
 
+	printf("Memory variant %d (%s) detected\n", variant,
+		variant == 2 ? "2 GiB" : "4 GiB");
 	switch(variant) {
 	case 3:
 		return SZ_4G;