net/mlx5e: IPOIB, Add a missing skb_pull

A call to mlx5e_tx_skb_pull_inline was mistakenly dropped
in the cited patch. Get it back.

Fixes: 043dc78e

 ("net/mlx5e: TX, Use actual WQE size for SQ edge fill")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>