spi: spi-ppc4xx: Remove duplicate included header file linux/platform_device.h

The header file linux/platform_device.h is included
twice. Remove the last one.
Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Link: https://patch.msgid.link/20240830075800.3541646-1-lihongbo22@huawei.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-ppc4xx.c

@@ -30,7 +30,6 @@
 #include <linux/of_platform.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
-#include <linux/platform_device.h>
 
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_bitbang.h>