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>

include/linux/err.h

@@ -4,7 +4,7 @@
 #include <linux/compiler.h>
 #include <linux/compat.h>
 
-#include <asm/errno.h>
+#include <linux/errno.h>
 
 
 /*

include/linux/mtd/mtd.h

@@ -20,7 +20,7 @@
 #else
 #include <linux/compat.h>
 #include <mtd/mtd-abi.h>
-#include <asm/errno.h>
+#include <linux/errno.h>
 #include <div64.h>
 
 #define MAX_MTD_DEVICES 32