configs/sheevaplug_defconfig: bump linux kernel to 4.14.13

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

configs/sheevaplug_defconfig

@@ -11,8 +11,8 @@ BR2_SYSTEM_DHCP="eth0"
 BR2_TARGET_ROOTFS_JFFS2=y
 BR2_TARGET_ROOTFS_JFFS2_NANDFLASH_128K=y
 
-# Linux headers same as kernel, a 4.6 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_6=y
+# Linux headers same as kernel, a 4.14 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_14=y
 
 # bootloader
 BR2_TARGET_UBOOT=y
@@ -26,7 +26,7 @@ BR2_TARGET_UBOOT_FORMAT_KWB=y
 # Kernel
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.6"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.14.13"
 BR2_LINUX_KERNEL_DEFCONFIG="mvebu_v5"
 BR2_LINUX_KERNEL_APPENDED_UIMAGE=y
 BR2_LINUX_KERNEL_UIMAGE_LOADADDR="0x8000"