dm: sandbox: pci: Enable PCI for sandbox

Enable PCI options so that sandbox can be used for testing this bus with
driver model.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 6028cd4..842209a 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -26,6 +26,7 @@
 endif
 obj-$(CONFIG_SMSC_LPC47M) += smsc_lpc47m.o
 obj-$(CONFIG_STATUS_LED) += status_led.o
+obj-$(CONFIG_SANDBOX) += swap_case.o
 obj-$(CONFIG_TWL4030_LED) += twl4030_led.o
 obj-$(CONFIG_FSL_IFC) += fsl_ifc.o
 obj-$(CONFIG_FSL_SEC_MON) += fsl_sec_mon.o