configs/snps_arc700_axs101: bump kernel and u-boot versions

Bump versions:
- use U-Boot 2022.01
- use Linux kernel v5.16

Add U-Boot configuration fragment increasing early malloc pool size.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich@synopsys.com>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

board/synopsys/axs10x/uboot-fragment.config

@@ -0,0 +1 @@
+CONFIG_SYS_MALLOC_F_LEN=0x0500

configs/snps_arc700_axs101_defconfig

@@ -8,13 +8,13 @@ BR2_TARGET_ROOTFS_INITRAMFS=y
 BR2_SYSTEM_DHCP="eth0"
 BR2_ROOTFS_POST_BUILD_SCRIPT="board/synopsys/axs10x/post-build.sh"
 
-# Linux headers same as kernel, a 5.6 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_6=y
+# Linux headers same as kernel, a 5.16 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_16=y
 
 # Kernel
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.6.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.16"
 BR2_LINUX_KERNEL_DEFCONFIG="axs101"
 BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
 
@@ -22,6 +22,8 @@ BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
 BR2_TARGET_UBOOT=y
 BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
 BR2_TARGET_UBOOT_CUSTOM_VERSION=y
-BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2018.05"
+BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2022.01"
 BR2_TARGET_UBOOT_BOARD_DEFCONFIG="axs101"
+BR2_TARGET_UBOOT_CONFIG_FRAGMENT_FILES="board/synopsys/axs10x/uboot-fragment.config"
 BR2_TARGET_UBOOT_NEEDS_DTC=y
+BR2_TARGET_UBOOT_NEEDS_OPENSSL=y