linux: tlc591xx: fix segfault with two chips

Realle a PEBKAC on my side.

Also bump kernel while we're at it.

Change-Id: I577f9479816e2972798827ffb7b602cdb057a8a0
diff --git a/configs/czechlight_beaglebone_defconfig b/configs/czechlight_beaglebone_defconfig
index 3904870..dcb0b17 100644
--- a/configs/czechlight_beaglebone_defconfig
+++ b/configs/czechlight_beaglebone_defconfig
@@ -22,7 +22,7 @@
 BR2_ROOTFS_POST_SCRIPT_ARGS="-c $(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/beaglebone/genimage.cfg"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.5.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.5.8"
 BR2_LINUX_KERNEL_DEFCONFIG="omap2plus"
 BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/common/linux.fragment $(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/beaglebone/linux.fragment"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y