cris build fixes: atomic.h needs compiler.h

Include file linux/compiler.h is needed for 'likely'.
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/asm-cris/atomic.h

@@ -5,6 +5,7 @@
 
 #include <asm/system.h>
 #include <asm/arch/atomic.h>
+#include <linux/compiler.h>
 
 /*
  * Atomic operations that C can't guarantee us.  Useful for