riscv: qemu: Enable EFI framebuffer

Enable framebuffer for better virtual machine integration.
Some guests need EFI FB to work properly.
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
diff --git a/board/emulation/qemu-riscv/Kconfig b/board/emulation/qemu-riscv/Kconfig
index 9538c66..012ac14 100644
--- a/board/emulation/qemu-riscv/Kconfig
+++ b/board/emulation/qemu-riscv/Kconfig
@@ -58,6 +58,8 @@
 	imply E1000
 	imply PCI
 	imply NVME_PCI
+	imply VIDEO
+	imply VIDEO_SIMPLE
 	imply PCIE_ECAM_GENERIC
 	imply DM_RNG
 	imply DM_RTC