Replace "#include <asm-$ARCH/$FILE>" with "#include <asm/$FILE>"

The appropriate include/asm-$ARCH directory should already by symlinked
to include/asm so using the whole "asm-$ARCH" path is unnecessary.

This change should also allow us to move the include/asm-$ARCH
directories into their appropriate lib/$ARCH/ directories.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
diff --git a/board/netstal/hcu4/hcu4.c b/board/netstal/hcu4/hcu4.c
index 3f07ff1..1c99405 100644
--- a/board/netstal/hcu4/hcu4.c
+++ b/board/netstal/hcu4/hcu4.c
@@ -22,7 +22,7 @@
 #include  <ppc4xx.h>
 #include  <asm/processor.h>
 #include  <asm/io.h>
-#include  <asm-ppc/u-boot.h>
+#include  <asm/u-boot.h>
 #include  "../common/nm.h"
 
 DECLARE_GLOBAL_DATA_PTR;