table: fix next hop table entry type
table: fix next hop table entry type

Change type of nht field from uint32_t to uint8_t and increase max of
next hops.

nht_entry and nht should be declared as uint8_t because
entry_size is in bytes and is given as a parameter to compute
the position in nht array.

Fixes: dc81ebbacaeb ("lpm: extend IPv4 next hop field")

Signed-off-by: Michal Kobylinski <c77219d1941a2419b03afccf1312b2374548485a@intel.com>
Acked-by: Cristian Dumitrescu <25468b8a3698eeb3c368247f8635924bb4a1ce2c@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk