net/bnx2x: fix icc build
net/bnx2x: fix icc build

Fix a compilation issue seen with icc 19

Signed-off-by: Rasesh Mody <c8223c19d631070969ce617784c0b15ffe536245@marvell.com>

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