ixgbe/base: new error types
ixgbe/base: new error types

This patch defines new error type in IXGBE base code; they are
used to report different kinds of error.

Signed-off-by: Changchun Ouyang <593bf1f161e79772915ea885e47cf0e95f4498c0@intel.com>

phermansson/dpdk,phermansson/dpdk,phermansson/dpdk,phermansson/dpdk