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/include/bootstate.h

@@ -165,7 +165,7 @@ void boot_state_current_block(void);
 void boot_state_current_unblock(void);
 
 /* Entry into the boot state machine. */
-void hardwaremain(void);
+void main(void);
 
 /* In order to schedule boot state callbacks at compile-time specify the
  * entries in an array using the BOOT_STATE_INIT_ENTRIES and