qcacld-3.0: Avoid integer overflow while processing bcn report req

In case of a noisy environment, if DUT founds a max number of APs
(MAX_SCAN_CACHE_SIZE = 300) in RRM scan results, DUT should send a
beacon report for all APs in multiple beacon reports.

Host applies a filter on RRM scan results and calculates the final
number APs for which DUT sends beacon reports.

While processing beacon report request from AP, the host calls
csr_scan_get_result API to apply scan filter on RRM scan results
and saves the final number of APs to be sent in beacon report in
a local parameter "num_scan_results" of type uint8_t, this results
in integer overflow, if the final number of APs is more than 255
(here the final number of APs is 299).

Fix is to change the type of local parameter "num_scan_results"
to uint32_t to avoid integer overflow.

Change-Id: I38b37a55d4e62841ba36f2e72cf0e8ae64844c06
CRs-Fixed: 3226783

core/sme/src/rrm/sme_rrm.c

@@ -447,7 +447,7 @@ static QDF_STATUS sme_rrm_send_scan_result(struct mac_context *mac_ctx,
 	tCsrScanResultInfo **scanresults_arr = NULL;
 	struct scan_result_list *result_list;
 	QDF_STATUS status;
-	uint8_t num_scan_results, counter = 0;
+	uint32_t num_scan_results, counter = 0;
 	tpRrmSMEContext rrm_ctx =
 		&mac_ctx->rrm.rrmSmeContext[measurement_index];
 	uint32_t session_id;