prima: extscan: Addition of ini gExtScanConcMode.

Add ini variable gExtScanConcMode to provide option to enable/
disable ext scan or use split scan during concurrency mode.

Change-Id: I46b7ff270c23e8aaeb788a00b09323db98b2e407
CRs-Fixed: 907616
diff --git a/CORE/HDD/inc/wlan_hdd_cfg.h b/CORE/HDD/inc/wlan_hdd_cfg.h
index d8438c6..230319c 100644
--- a/CORE/HDD/inc/wlan_hdd_cfg.h
+++ b/CORE/HDD/inc/wlan_hdd_cfg.h
@@ -2526,6 +2526,19 @@
 #define CFG_TOGGLE_ARP_BDRATES_DEFAULT     0
 
 /*
+ * gExtScanConcMode is used to manage EXT Scan during concurrency
+ * This can be useful during WFD session. To avoid glitches during WFD
+ * either ext scan has to be disabled or use split scan
+ * 0: Disable EXT Scan
+ * 1: Use Split scan
+ * 2: Enable EXT Scan
+ */
+#define CFG_EXT_SCAN_CONC_MODE                             "gExtScanConcMode"
+#define CFG_EXT_SCAN_CONC_MODE_MIN                          (0)
+#define CFG_EXT_SCAN_CONC_MODE_MAX                          (2)
+#define CFG_EXT_SCAN_CONC_MODE_DEFAULT                      (1)
+
+/*
  * If within gLinkFailTimeout period(values is mentioned in msec) if FW
  * doesn't receive acks for gLinkFailTxCnt number of packets, then link will
  * be disconnected.
@@ -3074,6 +3087,7 @@
    v_U8_t                      gOptimizeCAevent;
    v_BOOL_t                    enableFwrMemDump;
    v_U8_t                      gActivePassiveChCon;
+   v_U32_t                     cfgExtScanConcMode;
 } hdd_config_t;
 
 /*---------------------------------------------------------------------------