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/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index c480920..8e8d443 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -22,7 +22,7 @@
 
 #ifdef __KERNEL__
 
-#include <asm/errno.h>
+#include <linux/errno.h>
 
 struct msr {
 	union {