[ofw] [PATCH] OFED compat: convert return values to errno

[Sean Hefty]

>Convert libibverbs and librdmacm to use errno.  Return values
>from winverbs and winsock are converted into errno values.
>
>To handle values undefined in the current WDK version of errno.h,
>add a new header file under the linux include directory with
>missing values.
>
>Signed-off-by: Sean Hefty <sean.hefty at intel.com>
>---
>This has been compiled tested only.

This passed testing with iMPI and rdma_cmatose and has been committed.

- Sean