device.h: fix misleading comment

The comment for Z_DEVICE_DT_DEV_ID() is misleading: device_get_binding()
compares its inputs with values generated by the DEVICE_DT_NAME() macro,
which expands to the node's DT label or to the node's full name.

This patch updates the comment to reflect the actual behavior of
Z_DEVICE_DT_DEV_ID().

Signed-off-by: Luca Burelli <[email protected]>

Author: pillo79

include/zephyr/device.h

@@ -91,10 +91,8 @@ typedef int16_t device_handle_t;
  */
 #define DEVICE_NAME_GET(dev_id) _CONCAT(__device_, dev_id)
 
-/* Node paths can exceed the maximum size supported by
- * device_get_binding() in user mode; this macro synthesizes a unique
- * dev_id from a devicetree node while staying within this maximum
- * size.
+/* This macro synthesizes a unique dev_id from a devicetree node by using
+ * the node's dependency ordinal.
  *
  * The ordinal used in this name can be mapped to the path by
  * examining zephyr/include/generated/zephyr/devicetree_generated.h.