[rdkb][common][hal][Add lack hal function]

[Description]
Add lack hal function
1. When enable CONFIG_DFS flag , there are two undefined functions.
wifi_getRadioDfsAtBootUpEnable and wifi_setRadioDfsAtBootUpEnable

[Release-log]

diff --git a/src/wifi/wifi_hal.c b/src/wifi/wifi_hal.c
index 839c9cc..bf084f6 100644
--- a/src/wifi/wifi_hal.c
+++ b/src/wifi/wifi_hal.c
@@ -2423,6 +2423,19 @@
     return RETURN_OK;
 }
 
+INT wifi_getRadioDfsAtBootUpEnable(INT radioIndex, BOOL *output_bool)	//Tr181
+{
+    if (output_bool == NULL)
+         return RETURN_ERR;
+     *output_bool = true;   
+    return RETURN_OK;     
+}
+
+INT wifi_setRadioDfsAtBootUpEnable(INT radioIndex, BOOL enable)	//Tr181
+{
+    return RETURN_OK;
+}
+
 //Get the Dfs enable status
 INT wifi_getRadioDfsEnable(INT radioIndex, BOOL *output_bool)	//Tr181
 {