wlan: Add Multicast/Broadcast filters

ARP offload is given precedence over MC/BC filter. If MC/BC filter
is set to 3 and ARP offload is enabled; Riva responds to ARP and
filters other broadcast frames.

Change-Id: I26c7af9feb39641ebfda610923f385650ef59195
CRs-fixed: 465312
diff --git a/firmware_bin/WCNSS_qcom_cfg.ini b/firmware_bin/WCNSS_qcom_cfg.ini
index 29540be..3715347 100644
--- a/firmware_bin/WCNSS_qcom_cfg.ini
+++ b/firmware_bin/WCNSS_qcom_cfg.ini
@@ -85,7 +85,7 @@
 
 # 2: Filter all Broadcast. 3: Filter all Mcast abd Bcast
 
-McastBcastFilter=0
+McastBcastFilter=3
 
 
 #Flag to enable HostARPOffload feature or not