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>

arch/arm/imx-common/rdc-sema.c

@@ -8,7 +8,7 @@
 #include <asm/arch/imx-regs.h>
 #include <asm/imx-common/rdc-sema.h>
 #include <asm/arch/imx-rdc.h>
-#include <asm-generic/errno.h>
+#include <linux/errno.h>
 
 /*
  * Check if the RDC Semaphore is required for this peripheral.

arch/arm/mach-keystone/psc.c

@@ -8,7 +8,7 @@
  */
 
 #include <common.h>
-#include <asm-generic/errno.h>
+#include <linux/errno.h>
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/arch/psc_defs.h>