Merge branch 'seg6-next'

Julien Massonneau says:

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SRv6: SRH processing improvements

Add support for IPv4 decapsulation in ipv6_srh_rcv() and
ignore routing header with segments left equal to 0 for
seg6local actions that doesn't perfom decapsulation.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>