RDMA: Fix comment typo

The double `get' is duplicated, remove one.

Link: https://lore.kernel.org/r/20220722021833.15669-1-gaoxin@cdjrlc.comSigned-off-by: Xin Gao <gaoxin@cdjrlc.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

include/rdma/ib_verbs.h

@@ -4603,7 +4603,7 @@ static inline enum rdma_ah_attr_type rdma_ah_find_type(struct ib_device *dev,
 
 /**
  * ib_lid_cpu16 - Return lid in 16bit CPU encoding.
- *     In the current implementation the only way to get
+ *     In the current implementation the only way to
  *     get the 32bit lid is from other sources for OPA.
  *     For IB, lids will always be 16bits so cast the
  *     value accordingly.