common/cnxk: support NPA bulk alloc/free
common/cnxk: support NPA bulk alloc/free

Add APIs to alloc/free in bulk from NPA pool.

Signed-off-by: Ashwin Sekhar T K <b45fa93d246de8ace97bf9e06c737641b7430ac2@marvell.com>
Acked-by: Nithin Dabilpuram <5876e1d9ac41f57357c508f9123b8d030ff3606b@marvell.com>

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