The actual maximum number of gather pointers should have been limited
Coverity issue: 375803, 375813, 375819, 375827, 375831
Fixes: 5ad5060f8f7a ("baseband/acc100: add LDPC processing functions")
Cc: stable@dpdk.org
Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>