configs/riotboard: bump kernel to version 4.18.10

Signed-off-by: Nikolay Dimitrov <nikolay.dimitrov@retrohub.org>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

configs/riotboard_defconfig

@@ -22,7 +22,7 @@ BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_18=y
 # kernel
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.10"
 BR2_LINUX_KERNEL_DEFCONFIG="imx_v6_v7"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
 BR2_LINUX_KERNEL_INTREE_DTS_NAME="imx6dl-riotboard"