qcacld-3.0: Increase default value of bmps timer to 600secs

CBF report is not sent as response to NDPA frames
sent by AP when STA goes to powersave. This is
resulting in VHT-5.2.63A cert test case failure,
where pass criteria is to check the last CBF frame
from STA.

Fix is to increase default value of bmps timer to
600secs.

Change-Id: Ibca5fe0af0be22f0bef463a5b4d11d617ac4391b
CRs-Fixed: 2412177