shamu_defconfig: disable NF_TARGET_REJECT_SKERR

Disable forcing socket error when rejecting with icmp* for now
due to frequent kernel crash.

Bug: 28424847
Change-Id: Id9d45017bf56752d5e027baefbcc7f7e3a52dd08
Signed-off-by: Thierry Strudel <tstrudel@google.com>

arch/arm/configs/shamu_defconfig

@@ -188,7 +188,6 @@ CONFIG_IP_NF_MATCH_ECN=y
 CONFIG_IP_NF_MATCH_TTL=y
 CONFIG_IP_NF_FILTER=y
 CONFIG_IP_NF_TARGET_REJECT=y
-CONFIG_IP_NF_TARGET_REJECT_SKERR=y
 CONFIG_NF_NAT_IPV4=y
 CONFIG_IP_NF_TARGET_MASQUERADE=y
 CONFIG_IP_NF_TARGET_NETMAP=y
@@ -203,7 +202,6 @@ CONFIG_NF_CONNTRACK_IPV6=y
 CONFIG_IP6_NF_IPTABLES=y
 CONFIG_IP6_NF_FILTER=y
 CONFIG_IP6_NF_TARGET_REJECT=y
-CONFIG_IP6_NF_TARGET_REJECT_SKERR=y
 CONFIG_IP6_NF_MANGLE=y
 CONFIG_IP6_NF_RAW=y
 CONFIG_BRIDGE_NF_EBTABLES=y