configs/pc: bump kernel version

Bump the kernel version to 4.13.8.
Tested with qemu 2.9.1 on bios and UEFI virtual machines.

Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

configs/pc_x86_64_bios_defconfig

@@ -21,13 +21,13 @@ BR2_TARGET_ROOTFS_EXT2_SIZE="120M"
 # BR2_TARGET_ROOTFS_TAR is not set
 BR2_ROOTFS_POST_IMAGE_SCRIPT="board/pc/post-image.sh"
 
-# Linux headers same as kernel, a 4.11 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_11=y
+# Linux headers same as kernel, a 4.13 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_13=y
 
 # Kernel
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.11.5"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.13.8"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/pc/linux.config"
 BR2_LINUX_KERNEL_INSTALL_TARGET=y

configs/pc_x86_64_efi_defconfig

@@ -24,13 +24,13 @@ BR2_TARGET_ROOTFS_EXT2_SIZE="120M"
 # BR2_TARGET_ROOTFS_TAR is not set
 BR2_ROOTFS_POST_IMAGE_SCRIPT="board/pc/post-image.sh"
 
-# Linux headers same as kernel, a 4.11 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_11=y
+# Linux headers same as kernel, a 4.13 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_13=y
 
 # Kernel
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.11.5"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.13.8"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/pc/linux.config"
 BR2_LINUX_KERNEL_INSTALL_TARGET=y