Rename hardwaremain() to main()

... and drop the wrapper on ARMv7

Change-Id: If3ffe953cee9e61d4dcbb38f4e5e2ca74b628ccc
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3639
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/lib/timestamp.c

@@ -92,7 +92,7 @@ static int timestamp_entries CAR_GLOBAL = 0;
  * This is needed when time stamping before the CBMEM area
  * is initialized. The function timestamp_sync() is used to
  * write the time stamps to the CBMEM area. This is done in
- * hardwaremain()
+ * ram stage main()
  */
 
 void timestamp_stash(enum timestamp_id id)