[PATCH 11/18][SK_BUFF]: Use skb_reset_network_header after skb_push

Some more cases where skb->nh.iph was being set that were converted
to using skb_reset_network_header.

Signed-off-by: Arnaldo Carvalho de Melo <redacted>
---
 net/ipv4/ip_output.c |   14 ++++++--------
 net/ipv4/ipmr.c      |    9 ++++++---
 2 files changed, 12 insertions(+), 11 deletions(-)