ACPICA: Move ACPI timer prototypes to public acpixf file

These prototypes were incorrectly declared in achware.h.

Signed-off-by: Bob Moore <[e-mail]>
Signed-off-by: Lin Ming <[e-mail]>
Signed-off-by: Len Brown <[e-mail]>

drivers/acpi/acpica/achware.h

···
 acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id,
 		      acpi_handle root_pci_device, acpi_handle pci_region);
 
-#ifdef	ACPI_FUTURE_USAGE
-/*
- * hwtimer - ACPI Timer prototypes
- */
-acpi_status acpi_get_timer_resolution(u32 * resolution);
-
-acpi_status acpi_get_timer(u32 * ticks);
-
-acpi_status
-acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed);
-#endif				/* ACPI_FUTURE_USAGE */
-
 #endif				/* __ACHWARE_H__ */

include/acpi/acpixf.h

···
 acpi_status acpi_leave_sleep_state(u8 sleep_state);
 
 /*
+ * ACPI Timer interfaces
+ */
+#ifdef ACPI_FUTURE_USAGE
+acpi_status acpi_get_timer_resolution(u32 *resolution);
+
+acpi_status acpi_get_timer(u32 *ticks);
+
+acpi_status
+acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 *time_elapsed);
+#endif				/* ACPI_FUTURE_USAGE */
+
+/*
  * Error/Warning output
  */
 void ACPI_INTERNAL_VAR_XFACE