iwlwifi: use __get_str in tracing

__get_str() is identical to (char *)__get_dynamic_array()
that is in the code now, substitute __get_str to make the
code more readable.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
1 file changed