configs: icore: Fix U-Boot proper loading from nand

SPL on Engicam i.Core M6 boards enabled DM, so it would require some
malloc() pool before relocation in order to load U-Boot proper properly.

So, enable SPL malloc() pool of 0x2000 size similarly like what we have
used for icore mmc defconfigs.

Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Shyam Saini <shyam.saini@amarulasolutions.com>
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
diff --git a/configs/imx6dl_icore_nand_defconfig b/configs/imx6dl_icore_nand_defconfig
index c34c515..69c45b9 100644
--- a/configs/imx6dl_icore_nand_defconfig
+++ b/configs/imx6dl_icore_nand_defconfig
@@ -4,6 +4,7 @@
 CONFIG_SPL_GPIO_SUPPORT=y
 CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_TARGET_MX6Q_ENGICAM=y
 CONFIG_SPL_SERIAL_SUPPORT=y
 CONFIG_SPL=y
diff --git a/configs/imx6q_icore_nand_defconfig b/configs/imx6q_icore_nand_defconfig
index cf149d6..b53a501 100644
--- a/configs/imx6q_icore_nand_defconfig
+++ b/configs/imx6q_icore_nand_defconfig
@@ -4,6 +4,7 @@
 CONFIG_SPL_GPIO_SUPPORT=y
 CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_TARGET_MX6Q_ENGICAM=y
 CONFIG_SPL_SERIAL_SUPPORT=y
 CONFIG_SPL=y