ACPICA: Restructure includes into public/private

acpi.h now includes only the "public" acpica headers. All other
acpica headers are "private" and should not be included by acpica
users. One new file, accommon.h is used to include the commonly
used private headers for acpica code generation. Future plans
are to move all private headers to a new subdirectory.

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/include/acpi/achware.h b/include/acpi/achware.h
index cd40810..58c69dc 100644
--- a/include/acpi/achware.h
+++ b/include/acpi/achware.h
@@ -44,11 +44,7 @@
 #ifndef __ACHWARE_H__
 #define __ACHWARE_H__
 
-/* PM Timer ticks per second (HZ) */
-
-#define PM_TIMER_FREQUENCY  3579545
-
-/* Values for the _SST reserved method */
+/* Values for the _SST predefined method */
 
 #define ACPI_SST_INDICATOR_OFF  0
 #define ACPI_SST_WORKING        1
@@ -56,8 +52,6 @@
 #define ACPI_SST_SLEEPING       3
 #define ACPI_SST_SLEEP_CONTEXT  4
 
-/* Prototypes */
-
 /*
  * hwacpi - high level functions
  */