[Celestica][haliburton][cp210x] modprobe cp210x to ensure the driver loaded properly (#6715)

This PR is to fix issue: #6603
The CP210x driver not attached properly after first login (cold-plug), lsusb and dmesg shown that the usb devices has been recognized but driver is missing.

Author: Blueve

platform/broadcom/sonic-platform-modules-cel/debian/platform-modules-haliburton.init

@@ -18,6 +18,7 @@ start)
         modprobe smc
         modprobe hlx_gpio_ich
         modprobe dps200
+        modprobe cp210x
 
         found=0
         for devnum in 0 1; do