[PATCH for-5.1] hw: Only compile the usb-dwc2 controller if it is really needed

[Thomas Huth]

The USB_DWC2 switch is currently "default y", so it is included in all
qemu-system-* builds, even if it is not needed. Even worse, it does a
"select USB", so USB devices are now showing up as available on targets
that do not support USB at all. This sysbus device should only be
included by the boards that need it, i.e. by the Raspi machines.

Fixes: 153ef1662c ("dwc-hsotg (dwc2) USB host controller emulation")
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 hw/arm/Kconfig | 1 +
 hw/usb/Kconfig | 1 -
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index 4a224a6351..bc3a423940 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -315,6 +315,7 @@ config RASPI
     select FRAMEBUFFER
     select PL011 # UART
     select SDHCI
+    select USB_DWC2
 
 config STM32F205_SOC
     bool
diff --git a/hw/usb/Kconfig b/hw/usb/Kconfig
index d4d8c37c28..5e63dc75f8 100644
--- a/hw/usb/Kconfig
+++ b/hw/usb/Kconfig
@@ -48,7 +48,6 @@ config USB_MUSB
 
 config USB_DWC2
     bool
-    default y
     select USB
 
 config TUSB6010
-- 
2.18.1