wil6210: restore bus voting before resuming the device

Move the bus request restore to be done prior to
sending wmi_resume to the device, as the device can restore
the data path upon receiving this command.

Change-Id: Ib2442fcfea055a855bb6be65f9013bb7ad754767
Signed-off-by: Maya Erez <merez@codeaurora.org>