cm-t54: fix eMMC boot mode check

Boot from eMMC boot partition corresponds to BOOT_DEVICE_MMC2
omap_bootmode, while BOOT_DEVICE_MMC2_2 corresponds to the user
data partition boot.

Fix mmc_get_env_part() boot mode check to use a correct value.
Signed-off-by: NDmitry Lifshitz <lifshitz@compulab.co.il>

board/compulab/cm_t54/cm_t54.c

@@ -89,7 +89,7 @@ uint mmc_get_env_part(struct mmc *mmc)
 	 * If booted from eMMC boot partition then force eMMC
 	 * FIRST boot partition to be env storage
 	 */
-	if (bootmode == BOOT_DEVICE_MMC2_2)
+	if (bootmode == BOOT_DEVICE_MMC2)
 		bootpart = 1;
 
 	return bootpart;