bnxt_re/lib: Report vendor_err as zero for all flush completions.

vendor_err is reported as invalid value as this is not initalized.
Initialize the reported vendor_err to zero.

Fixes: f158e23c99c7 ("libbnxt_re: Allow apps to poll for flushed completions")
Signed-off-by: Damodharam Ammepalli <damodharam.ammepalli@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>

providers/bnxt_re/verbs.c

diff --git a/providers/bnxt_re/verbs.c b/providers/bnxt_re/verbs.c
index c6ed4e3..602a8f4 100644
--- a/providers/bnxt_re/verbs.c
+++ b/providers/bnxt_re/verbs.c
@@ -975,6 +975,7 @@
 		}
 
 		ibvwc->status = IBV_WC_WR_FLUSH_ERR;
+		ibvwc->vendor_err = 0;
 		ibvwc->opcode = opcode;
 		ibvwc->wr_id = wrid->wrid;
 		ibvwc->qp_num = qpid;