Doc: fix doxygen comments.

Some existing doxygen comments resulted in bad or bad looking
documentation. These were fixed.

Change-Id: I20ab5a81c54d3bdc0e056965ad7de293d472cdf9
Signed-off-by: Gyorgy Szing <Gyorgy.Szing@arm.com>
diff --git a/test/framework/test_framework_helpers.h b/test/framework/test_framework_helpers.h
index 03eb3dc..fe530a3 100755
--- a/test/framework/test_framework_helpers.h
+++ b/test/framework/test_framework_helpers.h
@@ -30,7 +30,7 @@
 /**
  * \brief Translates psa_ps_status_t into a string.
  *
- * \param[in] err  psa_ps_status_t status value.
+ * \param[in] status  psa_ps_status_t status value.
  *
  * \return psa_ps_status_t as string.
  */