imx SPL: enable boot from eMMC boot partitions.

Signed-off-by: Pierre Aubert <p.aubert@staubli.com>
diff --git a/arch/arm/imx-common/spl.c b/arch/arm/imx-common/spl.c
index 477c38c..ac6e40e 100644
--- a/arch/arm/imx-common/spl.c
+++ b/arch/arm/imx-common/spl.c
@@ -68,8 +68,10 @@
 	/* for MMC return either RAW or FAT mode */
 	case BOOT_DEVICE_MMC1:
 	case BOOT_DEVICE_MMC2:
-#ifdef CONFIG_SPL_FAT_SUPPORT
+#if defined(CONFIG_SPL_FAT_SUPPORT)
 		return MMCSD_MODE_FS;
+#elif defined(CONFIG_SUPPORT_EMMC_BOOT)
+		return MMCSD_MODE_EMMCBOOT;
 #else
 		return MMCSD_MODE_RAW;
 #endif