qcacld-3.0: Add Kconfig option for feature flag

Add Feature enable option in Kconfig:
WLAN_FEATURE_FILS; NAN_CONVERGENCE

Change-Id: I451e4aaddfe7f68a973092d13723090a33cc9f4c
CRs-Fixed: 2127806

Kconfig

@@ -143,4 +143,12 @@ config ICMP_DISABLE_PS
 config CONFIG_BUILD_TIMESTAMP
 	bool "Embed timestamp in wlan version"
 	default n
+
+config WLAN_FEATURE_FILS
+	bool "Enable FILS feature"
+	default n
+
+config NAN_CONVERGENCE
+	bool "Enable NAN_CONVERGENCE feature"
+	default n
 endif # QCA_CLD_WLAN