ORTE/OOB/UD set CQE size without querying the MAX supported size

[shamisp]

https://github.com/open-mpi/ompi/blob/master/orte/mca/oob/ud/oob_ud_qp.c#L53

You can't use static values since it may not work on a certain platforms. You have to query the size first and then use it.

(Link to the original report: openucx/ucx#551 (comment))

[jsquyres]

Per 16 Jan 2016 teleconf, @jladd-mlnx will assign this to someone in Mellanox.

[jladd-mlnx]

@artpol84 could you, please, address this.

[jladd-mlnx]

Assigning this to @igor-ivanov instead. Igor, please address this ASAP.

[jladd-mlnx]

Fixed via #1301