zero-initialize structs
zero-initialize structs

Zero-initialize the structures used to send IPMI packets to the device
interface.

Signed-off-by: Patrick Venture <36c53fa43f47f3fd67cb2fc38031827244d18a1f@google.com>
Change-Id: Ic9c473ee2df7929bf309be63a8e9b9108ca8c2f2

openbmc/ipmi-blob-tool