configs/mx6cubox: bump Linux and U-Boot versions

Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

configs/mx6cubox_defconfig

@@ -17,7 +17,7 @@ BR2_ROOTFS_POST_IMAGE_SCRIPT="board/solidrun/mx6cubox/post-image.sh"
 # Kernel
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.10.27"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.10.48"
 BR2_LINUX_KERNEL_DEFCONFIG="imx_v6_v7"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
 BR2_LINUX_KERNEL_INTREE_DTS_NAME="imx6dl-cubox-i imx6dl-cubox-i-emmc-som-v15 imx6dl-cubox-i-som-v15 imx6dl-hummingboard imx6dl-hummingboard-emmc-som-v15 imx6dl-hummingboard-som-v15 imx6q-cubox-i imx6q-cubox-i-emmc-som-v15 imx6q-cubox-i-som-v15 imx6q-hummingboard imx6q-hummingboard-emmc-som-v15 imx6q-hummingboard-som-v15"
@@ -32,7 +32,7 @@ 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="2021.04"
+BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2021.07"
 BR2_TARGET_UBOOT_BOARD_DEFCONFIG="mx6cuboxi"
 BR2_TARGET_UBOOT_NEEDS_PYTHON3=y
 BR2_TARGET_UBOOT_NEEDS_PYLIBFDT=y