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>

common/hash.c

@@ -17,7 +17,7 @@
 #include <mapmem.h>
 #include <hw_sha.h>
 #include <asm/io.h>
-#include <asm/errno.h>
+#include <linux/errno.h>
 #else
 #include "mkimage.h"
 #include <time.h>