hw/usb: move stubs out of stubs/

Since the USB stubs are needed exactly when the Kconfig symbols are not
enabled, they can be placed in hw/usb/ and conditionalized on CONFIG_USB.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240408155330.522792-11-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

hw/usb/meson.build

@@ -9,7 +9,7 @@ system_ss.add(when: 'CONFIG_USB', if_true: files(
   'desc-msos.c',
   'libhw.c',
   'pcap.c',
-))
+), if_false: files('bus-stub.c'))
 
 # usb host adapters
 system_ss.add(when: 'CONFIG_USB_UHCI', if_true: files('hcd-uhci.c'))

stubs/meson.build

@@ -56,7 +56,6 @@ endif
 if have_system
   stub_ss.add(files('fw_cfg.c'))
   stub_ss.add(files('semihost.c'))
-  stub_ss.add(files('usb-dev-stub.c'))
   stub_ss.add(files('xen-hw-stub.c'))
   stub_ss.add(files('virtio-md-pci.c'))
 else