configs/grinn_liteboard: Bump to U-Boot 2016.09.01

U-Boot 2016.09.01 is a bugfix release, so bump to this version.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

configs/grinn_liteboard_defconfig

@@ -16,7 +16,7 @@ BR2_TARGET_ROOTFS_EXT2_4=y
 BR2_TARGET_UBOOT=y
 BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
 BR2_TARGET_UBOOT_CUSTOM_VERSION=y
-BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2016.09"
+BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2016.09.01"
 BR2_TARGET_UBOOT_BOARD_DEFCONFIG="liteboard"
 BR2_TARGET_UBOOT_FORMAT_IMG=y
 BR2_TARGET_UBOOT_SPL=y