board/chiliboard: bump Linux to 5.4.26

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

configs/grinn_chiliboard_defconfig

@@ -1,12 +1,12 @@
 BR2_arm=y
 BR2_cortex_a8=y
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_1=y
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_4=y
 BR2_SYSTEM_DHCP="eth0"
 BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
 BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/grinn/chiliboard/genimage.cfg"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.1.1"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.4.26"
 BR2_LINUX_KERNEL_DEFCONFIG="omap2plus"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
 BR2_LINUX_KERNEL_INTREE_DTS_NAME="am335x-chiliboard"