[openib-general] librdmacm and udapl: Which git branch to use in ofed_1_2 build

[Arlin Davis]

>>OK, we can switch to master. Then DAPL would need to be updated, right?
>>Arlin?
>
>I think DAPL stays with rdma_ucm, but Arlin can confirm.

I created a 1.2 uDAPL branch to use with ofed_1_2 builds.