usb: Don't make USB_ARCH_HAS_{XHCI,OHCI,EHCI} depend on USB_SUPPORT.

The fact that an architecture/board has XHCI, OHCI or EHCI does not
depend on the fact that the kernel is configured with USB_SUPPORT.

Make the Kconfig reflect this fact thus avoiding ugly messages like:

warning: (MIPS_ALCHEMY && CAVIUM_OCTEON_REFERENCE_BOARD && SOC_AR71XX && SOC_AR724X && SOC_AR913X && SOC_AR933X) selects USB_ARCH_HAS_EHCI which has unmet direct dependencies (USB_SUPPORT)
Signed-off-by: David Daney <david.daney@cavium.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/Kconfig

@@ -10,27 +10,6 @@ menuconfig USB_SUPPORT
 	  This option adds core support for Universal Serial Bus (USB).
 	  You will also need drivers from the following menu to make use of it.
 
-if USB_SUPPORT
-
-config USB_COMMON
-	tristate
-	default y
-	depends on USB || USB_GADGET
-
-# Host-side USB depends on having a host controller
-# NOTE:  dummy_hcd is always an option, but it's ignored here ...
-# NOTE:  SL-811 option should be board-specific ...
-config USB_ARCH_HAS_HCD
-	boolean
-	default y if USB_ARCH_HAS_OHCI
-	default y if USB_ARCH_HAS_EHCI
-	default y if USB_ARCH_HAS_XHCI
-	default y if PCMCIA && !M32R			# sl811_cs
-	default y if ARM				# SL-811
-	default y if BLACKFIN				# SL-811
-	default y if SUPERH				# r8a66597-hcd
-	default PCI
-
 # many non-PCI SOC chips embed OHCI
 config USB_ARCH_HAS_OHCI
 	boolean
@@ -84,6 +63,27 @@ config USB_ARCH_HAS_XHCI
 	boolean
 	default PCI
 
+if USB_SUPPORT
+
+config USB_COMMON
+	tristate
+	default y
+	depends on USB || USB_GADGET
+
+# Host-side USB depends on having a host controller
+# NOTE:  dummy_hcd is always an option, but it's ignored here ...
+# NOTE:  SL-811 option should be board-specific ...
+config USB_ARCH_HAS_HCD
+	boolean
+	default y if USB_ARCH_HAS_OHCI
+	default y if USB_ARCH_HAS_EHCI
+	default y if USB_ARCH_HAS_XHCI
+	default y if PCMCIA && !M32R			# sl811_cs
+	default y if ARM				# SL-811
+	default y if BLACKFIN				# SL-811
+	default y if SUPERH				# r8a66597-hcd
+	default PCI
+
 # ARM SA1111 chips have a non-PCI based "OHCI-compatible" USB host interface.
 config USB
 	tristate "Support for Host-side USB"