ACPICA: Fix some comment fields

No functional change. Fixes some typos and linux divergences.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/acpica/exprep.c b/drivers/acpi/acpica/exprep.c
index 30157f5..ae62038 100644
--- a/drivers/acpi/acpica/exprep.c
+++ b/drivers/acpi/acpica/exprep.c
@@ -395,8 +395,8 @@
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Construct a union acpi_operand_object of type def_field and
- *              connect it to the parent Node.
+ * DESCRIPTION: Construct an object of type union acpi_operand_object with a
+ *              subtype of def_field and connect it to the parent Node.
  *
  ******************************************************************************/