[rdk-b][mt7986][wifi-hal][Refactor factoryResetRadios]

[Description]
Refactor factoryResetRadios

[Release-log]
N/A

diff --git a/src/wifi/wifi_hal.c b/src/wifi/wifi_hal.c
index 85f0862..0c5d051 100644
--- a/src/wifi/wifi_hal.c
+++ b/src/wifi/wifi_hal.c
@@ -725,15 +725,17 @@
 */
 INT wifi_factoryResetRadio(int radioIndex) 	//RDKB
 {
+    system("systemctl stop hostapd.service");
+
     WIFI_ENTRY_EXIT_DEBUG("Inside %s:%d\n",__func__, __LINE__);
     if(radioIndex == 0)
-        system("cp /etc/hostapd-2G.conf /nvram/hostapd0.conf");
+        system("rm /nvram/hostapd0.conf");
     else if(radioIndex == 1)
-        system("cp /etc/hostapd-5G.conf /nvram/hostapd1.conf");
+        system("rm /nvram/hostapd1.conf");
     else
          return RETURN_ERR;
 
-    system("systemctl restart hostapd.service");
+    system("systemctl start hostapd.service");
     WIFI_ENTRY_EXIT_DEBUG("Exiting %s:%d\n",__func__, __LINE__);
     return RETURN_OK;
 }