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

Now, include/linux/errno.h is a wrapper of <asm-generic/errno.h>.
Replace all include directives for <asm-generic/errno.h> with
<linux/errno.h>.

<asm-generic/...> is supposed to be included from <asm/...> when
arch-headers fall back into generic implementation. Generally, they
should not be directly included from .c files.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
[trini: Add drivers/usb/host/xhci-rockchip.c]
Signed-off-by: Tom Rini <trini@konsulko.com>

drivers/net/macb.c

@@ -39,7 +39,7 @@
 #include <asm/io.h>
 #include <asm/dma-mapping.h>
 #include <asm/arch/clk.h>
-#include <asm-generic/errno.h>
+#include <linux/errno.h>
 
 #include "macb.h"
 

drivers/net/xilinx_emaclite.c

@@ -17,7 +17,7 @@
 #include <phy.h>
 #include <miiphy.h>
 #include <fdtdec.h>
-#include <asm-generic/errno.h>
+#include <linux/errno.h>
 #include <linux/kernel.h>
 #include <asm/io.h>
 

drivers/net/zynq_gem.c

@@ -24,7 +24,7 @@
 #include <asm/system.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/sys_proto.h>
-#include <asm-generic/errno.h>
+#include <linux/errno.h>
 
 DECLARE_GLOBAL_DATA_PTR;