CHROMIUM: WAR: Change the request type in pdev_bss_info_request cmd

Currently, the request type in wmi pdev_bss_info_request cmd is filled
as WMI_BSS_SURVEY_REQ_TYPE_READ_CLEAR which means that for each survey
dump request, BSS channel cycle counters are read and cleared in
hardware.

To get accumulated channel cycle counters data, send the request with
type WMI_BSS_SURVEY_REQ_TYPE_READ so the BSS channel counters are read
but not cleared in hardware.

BUG=b:138746491, b:140611009
TEST=1. Compilation
     2. Run iw <dev> survey dump : It will show accumulated survey dump
	results for operating channel.

Change-Id: I6e275ceb8d6d0d718d63cbadb19e37dff043c3db
Signed-off-by: Surabhi Vishnoi <svishnoi@codeaurora.org>
Reviewed-on: https://chromium-review.googlesource.com/1798307


Tested-by: Julan Hsu <julanhsu@google.com>
Commit-Ready: Julan Hsu <julanhsu@google.com>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Julan Hsu <julanhsu@google.com>