net: wireless: bcmdhd change the DTIM skip policy

1) Bug: 22808829
2) Device will wake up at every another DTIM on scree off.
   However, the extended DTIM skip period will not be bigger than 400ms
   So, if the DTIM interval is 300ms, device will still wake up at every DTIM
   on screen off becaues of 400ms limitation.
Signed-off-by: Ecco Park <eccopark@broadcom.com>

Change-Id: I8ad0d453b756797a3c9f1c575c65b303842355f3

drivers/net/wireless/bcmdhd/Makefile

@@ -96,6 +96,9 @@ DHDCFLAGS += -DDHD_USE_IDLECOUNT
 # SKB TAILPAD to avoid out of boundary memory access
 DHDCFLAGS += -DDHDENABLE_TAILPAD
 
+# DTIM skip interval
+DHDCFLAGS += -DCUSTOM_SUSPEND_BCN_LI_DTIM=2 -DMAX_DTIM_ALLOWED_INTERVAL=400
+
 # Wi-Fi Direct
 DHDCFLAGS += -DWL_CFG80211_VSDB_PRIORITIZE_SCAN_REQUEST
 DHDCFLAGS += -DWL_CFG80211_STA_EVENT