treewide: replace #include <asm/errno.h> with <linux/errno.h>

Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have
the same content.  (both just wrap <asm-generic/errno.h>)

Replace all include directives for <asm/errno.h> with <linux/errno.h>.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
[trini: Fixup include/clk.]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/board/freescale/b4860qds/b4860qds.c b/board/freescale/b4860qds/b4860qds.c
index e582abb..1642a7d 100644
--- a/board/freescale/b4860qds/b4860qds.c
+++ b/board/freescale/b4860qds/b4860qds.c
@@ -11,7 +11,7 @@
 #include <linux/compiler.h>
 #include <asm/mmu.h>
 #include <asm/processor.h>
-#include <asm/errno.h>
+#include <linux/errno.h>
 #include <asm/cache.h>
 #include <asm/immap_85xx.h>
 #include <asm/fsl_law.h>