arch/sim: Support vncserver as display device

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>

arch/sim/Kconfig

@@ -307,6 +307,12 @@ config SIM_FRAMEBUFFER
 	---help---
 		Emulate a framebuffer
 
+config SIM_VNCSERVER
+	bool "VNC server"
+	depends on VNCSERVER
+	---help---
+		Serve a VNC server
+
 endchoice
 
 if INPUT

arch/sim/src/Makefile

@@ -113,10 +113,8 @@ endif
 
 ifeq ($(CONFIG_SIM_LCDDRIVER),y)
   CSRCS += up_lcd.c
-else
-  ifeq ($(CONFIG_SIM_FRAMEBUFFER),y)
+else ifeq ($(CONFIG_SIM_FRAMEBUFFER),y)
     CSRCS += up_framebuffer.c
-  endif
 endif
 
 ifeq ($(CONFIG_SIM_X11FB),y)