wil6210: fix timeout for start_pcp

It may take up to 3500ms for the FW to start AP/PCP. Increase accordingly,
adding some safety margin.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
1 file changed