ethdev: reset whole dev info structure before filling
ethdev: reset whole dev info structure before filling

To guarantee that RX/TX configuration structures are reseted
before modifying them, plus the other dev info fields,
dev info structure is zeroed beforehand.

Signed-off-by: Pablo de Lara <28355d9cfe41bb8148aea0fb24f47aae8f4217a1@intel.com>
Acked-by: David Marchand <f28529695cfa9e3e1eb84e7072aa626af4abb18e@6wind.com>

venkynv/dpdk-mirror,tsphillips/dpdk-fork,msune/dpdk,tsphillips/dpdk-fork,john-mcnamara-intel/dpdk,mixja/dpdk,mixja/dpdk,venkynv/dpdk-mirror,john-mcnamara-intel/dpdk,msune/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,venkynv/dpdk-mirror,msune/dpdk,tsphillips/dpdk-fork,venkynv/dpdk-mirror,tsphillips/dpdk-fork,mixja/dpdk,msune/dpdk,mixja/dpdk