Config skim

Just removed from the config files the registers we don't modify during configuration

src/optoboard_felix/configs/optoConfigList_example.json

 {
     "OB0": {
-        "optoboard_serial": "30000000",
+        "optoboard_serial": "2400001",
         "vtrx_v": "1.3",
         "flx_G": 0,
         "flx_d": 0,
@@ -11,9 +11,9 @@
         "configInDB": 0
     },
     "OB1": {
-        "optoboard_serial": "33000000",
+        "optoboard_serial": "4400044",
         "vtrx_v": "1.3",
-        "flx_G": 0,
+        "flx_G": 1,
         "flx_d": 0,
         "configure": 0,
         "test_mode": 1,