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/cmd/ubi.c b/cmd/ubi.c
index 4a92d84..b726f3f 100644
--- a/cmd/ubi.c
+++ b/cmd/ubi.c
@@ -21,7 +21,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/err.h>
 #include <ubi_uboot.h>
-#include <asm/errno.h>
+#include <linux/errno.h>
 #include <jffs2/load_kernel.h>
 
 #undef ubi_msg