treewide: Include linux/io.h instead of asm-generic/io.h

Directly including asm-generic/io.h may break build because it will
cause redefenition of generic io macros if linux/io.h gets included
later, hence replace it with direct include of linux/io.h

Signed-off-by: Igor Prusov <ivprusov@salutedevices.com>
diff --git a/drivers/spi/cadence_qspi.c b/drivers/spi/cadence_qspi.c
index cc3a54f..23240c1 100644
--- a/drivers/spi/cadence_qspi.c
+++ b/drivers/spi/cadence_qspi.c
@@ -7,7 +7,6 @@
 #include <common.h>
 #include <clk.h>
 #include <log.h>
-#include <asm-generic/io.h>
 #include <dm.h>
 #include <fdtdec.h>
 #include <malloc.h>
@@ -17,6 +16,7 @@
 #include <dm/device_compat.h>
 #include <linux/err.h>
 #include <linux/errno.h>
+#include <linux/io.h>
 #include <linux/sizes.h>
 #include <zynqmp_firmware.h>
 #include "cadence_qspi.h"