usb: xhci: move xhci.h to include usb

The xhci.h header file is currently located under drivers/usb/xhci
Move it to the include/usb folder to make it available to drivers that
are not under drivers/usb/xhci
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>

MAINTAINERS

@@ -851,6 +851,7 @@ M:	Bin Meng <bmeng.cn@gmail.com>
 S:	Maintained
 T:	git https://gitlab.denx.de/u-boot/custodians/u-boot-usb.git topic-xhci
 F:	drivers/usb/host/xhci*
+F:	include/usb/xhci.h
 
 VIDEO
 M:	Anatolij Gustschin <agust@denx.de>

drivers/usb/host/xhci-dwc3.c

@@ -14,7 +14,7 @@
 #include <usb.h>
 #include <dwc3-uboot.h>
 
-#include "xhci.h"
+#include <usb/xhci.h>
 #include <asm/io.h>
 #include <linux/usb/dwc3.h>
 #include <linux/usb/otg.h>

drivers/usb/host/xhci-exynos5.c

@@ -27,7 +27,7 @@
 #include <linux/compat.h>
 #include <linux/usb/dwc3.h>
 
-#include "xhci.h"
+#include <usb/xhci.h>
 
 /* Declare global data pointer */
 DECLARE_GLOBAL_DATA_PTR;

drivers/usb/host/xhci-fsl.c

@@ -13,7 +13,7 @@
 #include <linux/compat.h>
 #include <linux/usb/xhci-fsl.h>
 #include <linux/usb/dwc3.h>
-#include "xhci.h"
+#include <usb/xhci.h>
 #include <fsl_errata.h>
 #include <fsl_usb.h>
 #include <dm.h>

drivers/usb/host/xhci-mem.c

@@ -21,7 +21,7 @@
 #include <asm/cache.h>
 #include <linux/errno.h>
 
-#include "xhci.h"
+#include <usb/xhci.h>
 
 #define CACHELINE_SIZE		CONFIG_SYS_CACHELINE_SIZE
 /**

drivers/usb/host/xhci-mvebu.c

@@ -12,7 +12,7 @@
 #include <power/regulator.h>
 #include <asm/gpio.h>
 
-#include "xhci.h"
+#include <usb/xhci.h>
 
 struct mvebu_xhci_platdata {
 	fdt_addr_t hcd_base;

drivers/usb/host/xhci-omap.c

@@ -19,7 +19,7 @@
 #include <linux/usb/dwc3.h>
 #include <linux/usb/xhci-omap.h>
 
-#include "xhci.h"
+#include <usb/xhci.h>
 
 /* Declare global data pointer */
 static struct omap_xhci omap;

drivers/usb/host/xhci-pci.c

@@ -9,7 +9,7 @@
 #include <dm.h>
 #include <pci.h>
 #include <usb.h>
-#include "xhci.h"
+#include <usb/xhci.h>
 
 static void xhci_pci_init(struct udevice *dev, struct xhci_hccr **ret_hccr,
 			  struct xhci_hcor **ret_hcor)

drivers/usb/host/xhci-rcar.c

@@ -12,7 +12,7 @@
 #include <usb.h>
 #include <wait_bit.h>
 
-#include "xhci.h"
+#include <usb/xhci.h>
 #include "xhci-rcar-r8a779x_usb3_v3.h"
 
 /* Register Offset */

drivers/usb/host/xhci-ring.c

@@ -19,7 +19,7 @@
 #include <asm/unaligned.h>
 #include <linux/errno.h>
 
-#include "xhci.h"
+#include <usb/xhci.h>
 
 /**
  * Is this TRB a link TRB or was the last TRB the last TRB in this event ring

drivers/usb/host/xhci-rockchip.c

@@ -13,7 +13,7 @@
 #include <linux/usb/dwc3.h>
 #include <power/regulator.h>
 
-#include "xhci.h"
+#include <usb/xhci.h>
 
 struct rockchip_xhci_platdata {
 	fdt_addr_t hcd_base;

drivers/usb/host/xhci.c

@@ -28,7 +28,7 @@
 #include <asm/cache.h>
 #include <asm/unaligned.h>
 #include <linux/errno.h>
-#include "xhci.h"
+#include <usb/xhci.h>
 
 #ifndef CONFIG_USB_MAX_CONTROLLER_COUNT
 #define CONFIG_USB_MAX_CONTROLLER_COUNT 1

drivers/usb/phy/omap_usb_phy.c

@@ -19,7 +19,7 @@
 #include <linux/usb/dwc3.h>
 #include <linux/usb/xhci-omap.h>
 
-#include "../host/xhci.h"
+#include <usb/xhci.h>
 
 #ifdef CONFIG_OMAP_USB3PHY1_HOST
 struct usb3_dpll_params {