configs/amarula_vyasa_rk3288: bump u-boot version to 2021.01

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

configs/amarula_vyasa_rk3288_defconfig

@@ -10,7 +10,7 @@ BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_0=y
 BR2_TARGET_UBOOT=y
 BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
 BR2_TARGET_UBOOT_CUSTOM_VERSION=y
-BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2019.01"
+BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2021.01"
 BR2_TARGET_UBOOT_BOARD_DEFCONFIG="vyasa-rk3288"
 BR2_TARGET_UBOOT_NEEDS_DTC=y
 BR2_TARGET_UBOOT_NEEDS_PYLIBFDT=y