[ofw] ipoib error calling ib_reg_svc

[Sean Hefty]

The following error message displays on the debugger when running:
'devcon restart =infinibandcontroller'

[AL]ib_reg_svc() !ERROR!: sa_reg_svc failed: IB_INVALID_GUID

This traces back to:

ibbus!ib_reg_svc
iopib!ipoib_reg_addrs
ipoib!ipoib_set_info

The actual failure comes back from acquire_sa_req_svc() because the sm_lid has
not yet been set.  It seems that ipoib should delay calling ib_reg_svc until
after it receives the port up event.  Although at the very least, the error
message should be corrected or have its priority lowered.

(I'm not familiar enough with the ipoib code to try modifying it.)

- Sean