[PATCH -next] spi: mpc52xx: explicitly include linux/platform_device.h

[Randy Dunlap <rdunlap@xxxxxxxxxxxxx>]

Since linux/of_platform.h had included linux/platform_device.h
and since that inclusion was removed, this driver now needs to include
the latter header file explicitly to prevent build errors:

drivers/spi/spi-mpc52xx.c: In function 'mpc52xx_spi_probe':
drivers/spi/spi-mpc52xx.c:396:20: error: invalid use of undefined type 'struct platform_device'

and more like that.

Fixes: 0d18bcdebb2f ("of: Stop circularly including of_device.h and of_platform.h")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Rob Herring <robh@xxxxxxxxxx>
Cc: Mark Brown <broonie@xxxxxxxxxx>
Cc: linux-spi@xxxxxxxxxxxxxxx
---
 drivers/spi/spi-mpc52xx.c |    1 +
 1 file changed, 1 insertion(+)

diff -- a/drivers/spi/spi-mpc52xx.c b/drivers/spi/spi-mpc52xx.c
--- a/drivers/spi/spi-mpc52xx.c
+++ b/drivers/spi/spi-mpc52xx.c
@@ -22,6 +22,7 @@
 #include <linux/slab.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
+#include <linux/platform_device.h>
 
 #include <asm/time.h>
 #include <asm/mpc52xx.h>