Instance ID is too overloaded and the uses are beginning
to conflict. Separate the RPC configuration out.
Change-Id: I712731130339fee4fc8de4dc2d0fea7040773c58
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Other subsystems can depend on this one and then use
SPDK_RPC_REGISTER to register RPC functions.
Change-Id: I557f774331ce7146d299d06b3f81426e2103a11f
Signed-off-by: Ben Walker <benjamin.walker@intel.com>