net/ice: clean input set macro definition

net/ice: clean input set macro definition

Currently, the macro of input set use 2 bits, one bit for protocol and
inner/outer, another bit for src/dst field. But this could not
distinguish a rule with inner and outer fields for tunnel packet.
Redefine input set macro to make it clear. Only use these two bits for
protocol and field. Ignore the redundant inner/outer info.

ICE_INSET_TUN_* is used by switch module, should be removed after
switch refactor.

Signed-off-by: Zhirun Yan <zhirun.yan@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>