wlan: Expose wowlan capability to cfg80211

cfg80211 layer (kernel version 3.10 and above) issues disconnect on
connected interfaces during platform suspend if wow is not enabled
via nl80211. After disconnection driver can not put the chip into
wow mode. This results in increased power consumption and frequent
connect/disconnects.

To stop cfg80211 issuing disconnect, expose wow capability to
cfg80211 and let the user to enable wow via nl80211.

Change-Id: I4a2e76ec093e5f0e8fd6b9ba960c09a20c764354
CRs-Fixed: 2219758
diff --git a/CORE/HDD/inc/wlan_hdd_cfg80211.h b/CORE/HDD/inc/wlan_hdd_cfg80211.h
index 7d47327..369477b 100644
--- a/CORE/HDD/inc/wlan_hdd_cfg80211.h
+++ b/CORE/HDD/inc/wlan_hdd_cfg80211.h
@@ -121,6 +121,9 @@
 #define NUM_RADIOS  0x1
 #endif /* WLAN_FEATURE_LINK_LAYER_STATS */
 
+#define WOWL_PTRN_MAX_SIZE          128
+#define WOWL_PTRN_MASK_MAX_SIZE      16
+#define WOWL_MAX_PTRNS_ALLOWED       16
 
 typedef struct {
    u8 element_id;