ACPICA: Clean up double word in comment

ACPICA commit 01f43b049722fa7613fca3c9fa657b150fae8ac1

Remove the second 'know' and 'than'.

Link: https://github.com/acpica/acpica/commit/01f43b04Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/acpica/exfldio.c

@@ -104,7 +104,7 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc,
 #ifdef ACPI_UNDER_DEVELOPMENT
 	/*
 	 * If the Field access is any_acc, we can now compute the optimal
-	 * access (because we know know the length of the parent region)
+	 * access (because we know the length of the parent region)
 	 */
 	if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) {
 		if (ACPI_FAILURE(status)) {

drivers/acpi/acpica/hwregs.c

@@ -446,7 +446,7 @@ struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id)
  * RETURN:      Status
  *
  * DESCRIPTION: Write the PM1 A/B control registers. These registers are
- *              different than than the PM1 A/B status and enable registers
+ *              different than the PM1 A/B status and enable registers
  *              in that different values can be written to the A/B registers.
  *              Most notably, the SLP_TYP bits can be different, as per the
  *              values returned from the _Sx predefined methods.