Migrate some constants to core code (#6692)

esphome/components/sx1509/binary_sensor/__init__.py

@@ -1,12 +1,10 @@
 import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.components import binary_sensor
+from esphome.const import CONF_ROW, CONF_COL
 
 from .. import SX1509Component, sx1509_ns, CONF_SX1509_ID
 
-CONF_ROW = "row"
-CONF_COL = "col"
-
 DEPENDENCIES = ["sx1509"]
 
 SX1509BinarySensor = sx1509_ns.class_("SX1509BinarySensor", binary_sensor.BinarySensor)