ARM/dt: dory: add NETFILTER_XT_TARGET_IDLETIMER

Bug: 18519262
Change-Id: I2d2f9bc36604800b18e29f0c618777d72bd5248f
Signed-off-by: Simon Wilson <simonwilson@google.com>

arch/arm/configs/dory_defconfig

@@ -111,6 +111,7 @@ CONFIG_NETFILTER_TPROXY=y
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=y
 CONFIG_NETFILTER_XT_TARGET_CONNMARK=y
 CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=y
+CONFIG_NETFILTER_XT_TARGET_IDLETIMER=y
 CONFIG_NETFILTER_XT_TARGET_LOG=y
 CONFIG_NETFILTER_XT_TARGET_MARK=y
 CONFIG_NETFILTER_XT_TARGET_NFQUEUE=y