wifi: Update broadcom drivers download firmware path [1/1]

PD#SH-14553

Problem:
broadcom drivers download firmware failed

Solution:
fix it

Verify:
a5

Change-Id: Ic6cd9ff4fc0058b854d9ad4b77568da2f23c5dee
Signed-off-by: lei.chen <lei.chen@amlogic.com>
diff --git a/utils/multi_wifi_load_driver.c b/utils/multi_wifi_load_driver.c
index 4e2edbf..1e64532 100644
--- a/utils/multi_wifi_load_driver.c
+++ b/utils/multi_wifi_load_driver.c
@@ -575,9 +575,9 @@
 			sprintf(str, "firmware_path=%s/%s nvram_path=%s/%s", CYPRESS_FIRMWARE_PATH, arg->firmware_path, CYPRESS_FIRMWARE_PATH, arg->nvram_path);
 #else
 		if (type == TYPE_AP)
-			sprintf(str, "firmware_path=%s/%s nvram_path=%s/%s", BROADCOM_FIRMWARE_PATH, arg->firmware_ap_path, BROADCOM_FIRMWARE_PATH, arg->nvram_path);
+			sprintf(str, "firmware_path=/../..%s/%s nvram_path=/../..%s/%s", BROADCOM_FIRMWARE_PATH, arg->firmware_ap_path, BROADCOM_FIRMWARE_PATH, arg->nvram_path);
 		else
-			sprintf(str, "firmware_path=%s/%s nvram_path=%s/%s", BROADCOM_FIRMWARE_PATH, arg->firmware_path, BROADCOM_FIRMWARE_PATH, arg->nvram_path);
+			sprintf(str, "firmware_path=/../..%s/%s nvram_path=/../..%s/%s", BROADCOM_FIRMWARE_PATH, arg->firmware_path, BROADCOM_FIRMWARE_PATH, arg->nvram_path);
 #endif
 		break;
 	}