net/ice: fix protocol header for PPPoE

net/ice: fix protocol header for PPPoE

When adding a RSS rule with pattern MAC_PPPOE_IPV4_UDP and input
set SRC/DST IPV4, because of incomplete protocol header fields,
the rule can't do hash with inner src/dst ipv4. PPPOE_IPV4_TCP/SCTP
and PPPOE_IPV6_UDP/TCP/SCTP also have similar issues. This patch
complements protocol header fields for PPPOE data packets.

Fixes: 0b952714e9c1 ("net/ice: refactor PF hash flow")

Signed-off-by: Simei Su <simei.su@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>