RDMA/hns: Fix the driver uninit order during bond setting

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6Z4E9



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In the slave list of bond_grp, the first slave is always the main_hr_dev,
and the main_hr_dev is responsible for bonding netdev event handling. If
the main_hr_dev is uninit too early, some CHANGELOWERSTATE events may be
missed before the main_hr_dev is re-register, which may cause the HW is
configured with an outdated slave state.

This patch reverses the order of uniniting slave hr_dev to ensure
main_hr_dev is the last one being uninited.

Fixes: e62a2027 ("RDMA/hns: support RoCE bonding")
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>