RDMA/mana_ib: Modify QP state

Implement modify QP state for RC QPs.

Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://lore.kernel.org/r/1716366242-558-4-git-send-email-kotaranov@linux.microsoft.com


Reviewed-by: Long Li <longli@microsoft.com>
Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Signed-off-by: Leon Romanovsky <leon@kernel.org>