phy: Remove duplicated include in xusb.c

./drivers/phy/tegra/xusb.c: linux/platform_device.h is included more than once.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=5930Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20230719003614.5506-1-yang.lee@linux.alibaba.comSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/phy/tegra/xusb.c

@@ -12,7 +12,6 @@
 #include <linux/phy/phy.h>
 #include <linux/phy/tegra/xusb.h>
 #include <linux/platform_device.h>
-#include <linux/platform_device.h>
 #include <linux/regulator/consumer.h>
 #include <linux/reset.h>
 #include <linux/slab.h>