nezha_defconfig: bump Linux to current top of d1/wip

This is now based on Linux 6.1-rc3.  We don't have an option for 6.1 yes, so
mark it as 6.0 headers.

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

configs/nezha_defconfig

@@ -1,12 +1,12 @@
 BR2_riscv=y
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_19=y
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_0=y
 BR2_SYSTEM_DHCP="eth0"
 BR2_ROOTFS_OVERLAY="board/nezha/overlay"
 BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
 BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/nezha/genimage.cfg"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
-BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,smaeul,linux,fe178cf0153d98b71cb01a46c8cc050826a17e77)/linux-fe178cf0153d98b71cb01a46c8cc050826a17e77.tar.gz"
+BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,smaeul,linux,ca67838d84af4c9f85d06311c9e98e1adf46308f)/linux-ca67838d84af4c9f85d06311c9e98e1adf46308f.tar.gz"
 BR2_LINUX_KERNEL_DEFCONFIG="nezha"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
 BR2_LINUX_KERNEL_INTREE_DTS_NAME="allwinner/sun20i-d1-nezha"