powerpc: Fix some #ifndef __KERNEL__ that should be #ifdef

Grrr....

Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/include/asm-powerpc/heathrow.h b/include/asm-powerpc/heathrow.h
index 470ab7b..93f5495 100644
--- a/include/asm-powerpc/heathrow.h
+++ b/include/asm-powerpc/heathrow.h
@@ -1,6 +1,6 @@
 #ifndef _ASM_POWERPC_HEATHROW_H
 #define _ASM_POWERPC_HEATHROW_H
-#ifndef __KERNEL__
+#ifdef __KERNEL__
 /*
  * heathrow.h: definitions for using the "Heathrow" I/O controller chip.
  *