configs/qemu_aarch64_virt_defconfig: bump kernel to 4.13.6

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

configs/qemu_aarch64_virt_defconfig

@@ -9,12 +9,12 @@ BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
 # BR2_TARGET_ROOTFS_TAR is not set
 BR2_TARGET_ROOTFS_INITRAMFS=y
 
-# 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="4.11.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.13.6"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
-BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux-4.11.config"
+BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux-4.13.config"