RDMA/rtrs-clt: Reuse need_inval from mr

mr has a member need_inval, which can be used to indicate if
local invalidate is needed, switch to it and remove need_inv
from rtrs_clt_io_req.

Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Grzegorz Prajsner <grzegorz.prajsner@ionos.com>
Link: https://patch.msgid.link/20240821112217.41827-6-haris.iqbal@ionos.com


Signed-off-by: Leon Romanovsky <leon@kernel.org>