ARM: imx: configs: enable netfilter support

The Netfilter packet filtering framework is useful for so many
use cases that most people will build kernels with it enabled.

So, it would probably make sense to have it enabled by default.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arch/arm/configs/imx_v4_v5_defconfig

@@ -61,6 +61,7 @@ CONFIG_IP_PNP_DHCP=y
 # CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 # CONFIG_IPV6 is not set
+CONFIG_NETFILTER=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y

arch/arm/configs/imx_v6_v7_defconfig

@@ -59,6 +59,7 @@ CONFIG_IP_PNP_DHCP=y
 # CONFIG_INET_XFRM_MODE_BEET is not set
 # CONFIG_INET_LRO is not set
 CONFIG_IPV6=y
+CONFIG_NETFILTER=y
 # CONFIG_WIRELESS is not set
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y