include/rdma/opa_addr.h: Fix an endianness issue

IB_MULTICAST_LID_BASE is defined as follows:

#define IB_MULTICAST_LID_BASE cpu_to_be16(0xC000)

Hence use be16_to_cpu() to convert it to CPU endianness. Compile-tested
only.

Fixes: af808ece5ce9 ("IB/SA: Check dlid before SA agent queries for ClassPortInfo")
Signed-off-by: Bart Van Assche <[e-mail]>
Cc: Venkata Sandeep Dhanalakota <[e-mail]>
Cc: Mike Marciniszyn <[e-mail]>
Cc: Dennis Dalessandro <[e-mail]>
Signed-off-by: Jason Gunthorpe <[e-mail]>

include/rdma/opa_addr.h

···
 	if (attr->type == RDMA_AH_ATTR_TYPE_IB) {
 		if (!rdma_ah_get_dlid(attr) ||
 		    rdma_ah_get_dlid(attr) >=
-		    be32_to_cpu(IB_MULTICAST_LID_BASE))
+		    be16_to_cpu(IB_MULTICAST_LID_BASE))
 			return false;
 	} else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) {
 		if (!rdma_ah_get_dlid(attr) ||