kernel: set default for KERNEL_BPF_KPROBE_OVERRIDE

Without the default value this still causes a missing symbol. Disable by
default as it depends on FUNCTION_ERROR_INJECTION, which is disabled in
the generic config and we don't have a build symbol to enable that.

Fixes: 500c37c ("kernel: add missing symbol")
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

config/Config-kernel.in

@@ -461,6 +461,7 @@ config KERNEL_BPF_EVENTS
 config KERNEL_BPF_KPROBE_OVERRIDE
 	bool
 	depends on KERNEL_KPROBES
+	default n
 
 config KERNEL_AIO
 	bool "Compile the kernel with asynchronous IO support"