linux: enable CONFIG_AUDIT if the audit package is selected

We already turn on kernel features for several packages, so let's do it
for audit too, since the daemon is useless and fails to load otherwise.

Notice that we also turn NET on, since AUDIT depends on NET, like we do
for the wireguard package.

Signed-off-by: Carlos Santos <casantos@datacom.com.br>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 2c828ed72fa51607714cbd7a53304d11db7145c3)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

linux/linux.mk

@@ -309,6 +309,9 @@ define LINUX_KCONFIG_FIXUP_CMDS
 		$(call KCONFIG_ENABLE_OPT,CONFIG_DEVTMPFS_MOUNT,$(@D)/.config))
 	$(if $(BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV),
 		$(call KCONFIG_ENABLE_OPT,CONFIG_INOTIFY_USER,$(@D)/.config))
+	$(if $(BR2_PACKAGE_AUDIT),
+		$(call KCONFIG_ENABLE_OPT,CONFIG_NET,$(@D)/.config)
+		$(call KCONFIG_ENABLE_OPT,CONFIG_AUDIT,$(@D)/.config))
 	$(if $(BR2_PACKAGE_KTAP),
 		$(call KCONFIG_ENABLE_OPT,CONFIG_DEBUG_FS,$(@D)/.config)
 		$(call KCONFIG_ENABLE_OPT,CONFIG_ENABLE_DEFAULT_TRACERS,$(@D)/.config)