doc: Updating todo/features about hwsim radio id support

Lowering priority of HWSIM_ATTR_RADIO_ID task as we get the radio
id in error code field. If we really want to create a new attribute
for the radio id, then the TODO entry is still valid.

TODO

@@ -22,9 +22,12 @@ mac80211_hwsim
 
   The HWSIM_CMD_CREATE_RADIO command should return HWSIM_CMD_CREATE_RADIO
   on success so that the radio id for the created wiphy can be mapped by
-  test tools or when having to destroy that radio again.
+  test tools or when having to destroy that radio again. Note that currently
+  the radio is is parsed properly (commit a052cb5d3c29) as it comes in
+  the error code field, but if we want to create a new attribute for the
+  radio id, then some coding is needed.
 
-  Priority: High
+  Priority: Low
   Complexity: C1
 
 - Add support for client tracking of HWSIM_CMD_CREATE_RADIO

doc/features.txt

@@ -12,3 +12,12 @@ command line option.
 
 Once iwmon terminates, the netlink monitor interface is removed (in
 case iwmon created it).
+
+
+HWSIM
+=====
+
+The radio id from kernel mac80211_hwsim module is parsed properly in
+hwsim. The radio id is not returned as HWSIM_ATTR_RADIO_ID but instead
+it is returned in error message. If the error code > 0, then that means
+the radio id. If the error code < 0, then that indicates a real error.