wlan: Set TxBFCsnValue based on no. of sounding dimension of AP.

TxBFCsnValue is set using the ini param gTxBFCsnValue and doesnot
consider the sounding dimension supported by AP.
Now the TxBFCsnValue will be set as min value of gTxBFCsnValue and
no. of sounding dimension supported by AP.
Also the Default value of gTxBFCsnValue is set to 3.

Change-Id: I2266d58098f07e92e68a3c66acc1f7e00a63c124
CRs-Fixed: 750338
diff --git a/CORE/HDD/inc/wlan_hdd_cfg.h b/CORE/HDD/inc/wlan_hdd_cfg.h
index 2c89f46..50572d7 100644
--- a/CORE/HDD/inc/wlan_hdd_cfg.h
+++ b/CORE/HDD/inc/wlan_hdd_cfg.h
@@ -1931,8 +1931,8 @@
 
 #define CFG_VHT_CSN_BEAMFORMEE_ANT_SUPPORTED         "gTxBFCsnValue"
 #define CFG_VHT_CSN_BEAMFORMEE_ANT_SUPPORTED_MIN     ( WNI_CFG_VHT_CSN_BEAMFORMEE_ANT_SUPPORTED_STAMIN )
-#define CFG_VHT_CSN_BEAMFORMEE_ANT_SUPPORTED_MAX     ( WNI_CFG_VHT_CSN_BEAMFORMEE_ANT_SUPPORTED_STAMAX )
-#define CFG_VHT_CSN_BEAMFORMEE_ANT_SUPPORTED_DEFAULT ( WNI_CFG_VHT_CSN_BEAMFORMEE_ANT_SUPPORTED_STAMAX - 1)
+#define CFG_VHT_CSN_BEAMFORMEE_ANT_SUPPORTED_MAX     ( WNI_CFG_VHT_CSN_BEAMFORMEE_ANT_SUPPORTED_STAMAX - 1 )
+#define CFG_VHT_CSN_BEAMFORMEE_ANT_SUPPORTED_DEFAULT ( WNI_CFG_VHT_CSN_BEAMFORMEE_ANT_SUPPORTED_STAMAX - 1 )
 
 #define CFG_VHT_ENABLE_MU_BFORMEE_CAP_FEATURE         "gEnableMuBformee"
 #define CFG_VHT_ENABLE_MU_BFORMEE_CAP_FEATURE_MIN     ( 0 )