configs/asus_tinker_rk3288: bump to Linux kernel 5.14.13 and u-boot 2021.10

This bumps to linux 5.14.13, linux-headers 5.14 and u-boot version
2021.10 and drop local uboot patch where CONFIG_SYS_BOOTM_LEN was set to
16MB because on u-boot 2021.10 it's now set to 64MB as default to make
room for Linux images.

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

board/asus/tinker/patches/uboot/0001-include-configs-Increase-CONFIG_SYS_BOOTM_LEN-to-16M.patch

@@ -1,35 +0,0 @@
-From 8ee2b03039cccf64402a72dea2185d7fe1972729 Mon Sep 17 00:00:00 2001
-From: Shyam Saini <shyam.saini@amarulasolutions.com>
-Date: Mon, 15 Apr 2019 16:16:16 +0530
-Subject: [PATCH] include: configs: Increase CONFIG_SYS_BOOTM_LEN to 16MB
-
-The default value of CONFIG_SYS_BOOTM_LEN is 0x800000 i.e, 8MB which
-causes board reset because of larger uImage size.
-
-Error log snippet:
-   Booting using the fdt blob at 0x1f00000
-   Loading Kernel Image ... Image too large: increase CONFIG_SYS_BOOTM_LEN
-Must RESET board to recover
-resetting ...
-
-Signed-off-by: Shyam Saini <shyam.saini@amarulasolutions.com>
----
- include/configs/rk3288_common.h | 2 ++
- 1 file changed, 2 insertions(+)
-
-diff --git a/include/configs/rk3288_common.h b/include/configs/rk3288_common.h
-index 72a54bc0ab..eab7cf4d86 100644
---- a/include/configs/rk3288_common.h
-+++ b/include/configs/rk3288_common.h
-@@ -9,6 +9,8 @@
- #include <asm/arch/hardware.h>
- #include "rockchip-common.h"
- 
-+#define CONFIG_SYS_BOOTM_LEN (16 << 20) /* 16MB */
-+
- #define CONFIG_SKIP_LOWLEVEL_INIT_ONLY
- #define CONFIG_SYS_MALLOC_LEN		(32 << 20)
- #define CONFIG_SYS_CBSIZE		1024
--- 
-2.11.0
-

configs/asus_tinker_rk3288_defconfig

@@ -3,14 +3,14 @@ BR2_arm=y
 BR2_cortex_a17=y
 BR2_ARM_FPU_NEON_VFPV4=y
 
-# Linux headers same as kernel, a 5.0 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_0=y
+# Linux headers same as kernel, a 5.14 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_14=y
 
 # Bootloader
 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="2021.10"
 BR2_TARGET_UBOOT_BOARD_DEFCONFIG="tinker-rk3288"
 BR2_TARGET_UBOOT_NEEDS_DTC=y
 BR2_TARGET_UBOOT_NEEDS_OPENSSL=y
@@ -22,7 +22,7 @@ BR2_TARGET_UBOOT_SPL_NAME="spl/u-boot-spl-dtb.bin"
 # Kernel
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.0"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.14.13"
 BR2_LINUX_KERNEL_DEFCONFIG="multi_v7"
 BR2_LINUX_KERNEL_UIMAGE=y
 BR2_LINUX_KERNEL_UIMAGE_LOADADDR="0x02000000"
@@ -43,4 +43,3 @@ BR2_PACKAGE_HOST_UBOOT_TOOLS=y
 BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
 BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/asus/tinker/genimage.cfg"
 BR2_ROOTFS_POST_BUILD_SCRIPT="board/asus/tinker/post-build.sh"
-BR2_GLOBAL_PATCH_DIR="board/asus/tinker/patches/"