misc: bphy: Fix resource release sequence

commit a80c91d3cadc260dac54c894d2acb4bf59c77900 from
git@git.assembla.com:cavium/WindRiver.linux.git

Dynamically allocated structures were freed during first interrupt
cleanup cycle. When the same procedure was requested from another
context these object were no longer present which caused hard
page faults. Moving the cleanup to ultimate release call resolves
this problem.

Change-Id: Ib2776b8939f9f21559cb72384e3f76da783afc25
Signed-off-by: Jakub Palider <jpalider@marvell.com>
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/kernel/linux/+/48478


Tested-by: sa_ip-sw-jenkins <sa_ip-sw-jenkins@marvell.com>
Reviewed-by: Radha Chintakuntla <radhac@marvell.com>
Reviewed-by: Sunil Kovvuri Goutham <Sunil.Goutham@cavium.com>
Signed-off-by: Ruiqiang Hao <Ruiqiang.Hao@windriver.com>