bpf: depends on MODULES

module_alloc() and module_free() are available only if CONFIG_MODULES=y

Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/Kconfig

@@ -238,6 +238,7 @@ config HAVE_BPF_JIT
 config BPF_JIT
 	bool "enable BPF Just In Time compiler"
 	depends on HAVE_BPF_JIT
+	depends on MODULES
 	---help---
 	  Berkeley Packet Filter filtering capabilities are normally handled
 	  by an interpreter. This option allows kernel to generate a native