arm: at91: move atmel_serial.h to include/dm/platform_data

Move the arch specific atmel_serial.h header from AT91 to the generic
include/dm/platform_data.

This will be used for support on Microchip LAN969x.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>

board/bluewater/gurnard/gurnard.c

@@ -29,7 +29,7 @@
 #include <asm/arch/at91_rstc.h>
 #include <asm/arch/at91_rtc.h>
 #include <asm/arch/at91_sck.h>
-#include <asm/arch/atmel_serial.h>
+#include <dm/platform_data/atmel_serial.h>
 #include <asm/arch/clk.h>
 #include <asm/arch/gpio.h>
 #include <dm/uclass-internal.h>

board/siemens/corvus/board.c

@@ -20,7 +20,7 @@
 #include <asm/arch/at91sam9_smc.h>
 #include <asm/arch/at91_common.h>
 #include <asm/arch/at91_rstc.h>
-#include <asm/arch/atmel_serial.h>
+#include <dm/platform_data/atmel_serial.h>
 #include <asm/arch/gpio.h>
 #include <asm/gpio.h>
 #include <asm/arch/clk.h>

board/siemens/smartweb/smartweb.c

@@ -25,7 +25,7 @@
 #include <asm/arch/at91sam9260_matrix.h>
 #include <asm/arch/at91sam9_smc.h>
 #include <asm/arch/at91_common.h>
-#include <asm/arch/atmel_serial.h>
+#include <dm/platform_data/atmel_serial.h>
 #include <asm/arch/at91_spi.h>
 #include <spi.h>
 #include <asm/arch/clk.h>

board/siemens/taurus/taurus.c

@@ -24,7 +24,7 @@
 #include <asm/arch/at91_rstc.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/at91sam9_sdramc.h>
-#include <asm/arch/atmel_serial.h>
+#include <dm/platform_data/atmel_serial.h>
 #include <asm/arch/clk.h>
 #include <asm/gpio.h>
 #include <linux/mtd/rawnand.h>

drivers/serial/atmel_usart.c

@@ -18,7 +18,7 @@
 
 #include <asm/io.h>
 #if CONFIG_IS_ENABLED(DM_SERIAL)
-#include <asm/arch/atmel_serial.h>
+#include <dm/platform_data/atmel_serial.h>
 #endif
 #include <asm/arch/clk.h>
 #include <asm/arch/hardware.h>