[Celestica/Seastone2] Load interface LEDs (#9769)

Tested on a Celestica Seastone2 DX030 switch

Testing scenarios:
- Various QSFP ports in both normal and breakout config.
- 100G and 40G link speed show different colors.
- SFP1 port works.

Signed-off-by: Christian Svensson <blue@cmd.nu>

device/celestica/x86_64-cel_seastone_2-r0/led_proc_init.soc

@@ -1,9 +1,5 @@
-#Enable all ports
-port all en=1
-sleep 6
-#linkscan 250000; port xe,ce linkscan=on
-
-#Load LED
+linkscan off
+m0 load 0 0x3800 /usr/share/sonic/platform/custom.bin
+sleep 10
 led auto on; led start
-
-
+linkscan on