qemu: riscv: Enable UFS support

This enables UFS support for QEMU RISC-V 'virt' machine.

Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Neha Malcom Francis <n-francis@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/board/emulation/qemu-riscv/Kconfig b/board/emulation/qemu-riscv/Kconfig
index d56b4b5..f3ee1f6 100644
--- a/board/emulation/qemu-riscv/Kconfig
+++ b/board/emulation/qemu-riscv/Kconfig
@@ -82,5 +82,7 @@
 	imply USB_XHCI_PCI
 	imply USB_KEYBOARD
 	imply CMD_USB
+	imply UFS
+	imply UFS_PCI
 
 endif