usb: xhci-plat: Don't include xhci.h

The xhci_plat.h should not need to include the entire xhci.h header.
This can cause redefinition in dwc3 if it selectively includes some xHCI
definitions. This is a prerequisite change for a fix to disable suspend
during initialization for dwc3.

Cc: [e-mail]
Signed-off-by: Thinh Nguyen <[e-mail]>
Link: https://lore.kernel.org/r/310a[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/host/xhci-plat.h

···
 #ifndef _XHCI_PLAT_H
 #define _XHCI_PLAT_H
 
-#include "xhci.h"	/* for hcd_to_xhci() */
+struct device;
+struct platform_device;
+struct usb_hcd;
 
 struct xhci_plat_priv {
 	const char *firmware_name;

drivers/usb/host/xhci-rzv2m.c

···
  */
 
 #include <linux/usb/rzv2m_usb3drd.h>
+#include "xhci.h"
 #include "xhci-plat.h"
 #include "xhci-rzv2m.h"