Convert CONFIG_VIDEO_SW_CURSOR to Kconfig

This converts the following to Kconfig:
   CONFIG_VIDEO_SW_CURSOR

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
[trini: Re-convert, find all the cases where this is off]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index a842da6..6492366 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -503,6 +503,16 @@
 	  may be used if you have no keyboard device, or more than one
 	  (USB Keyboard, AT Keyboard).
 
+config VIDEO_SW_CURSOR
+	bool "Enable a software cursor"
+	depends on CFB_CONSOLE
+	default y if CFB_CONSOLE
+	help
+	  This draws a cursor after the last character. No blinking is
+	  provided. This makes it possible to see the current cursor
+	  position when entering text on the console. It is recommended to
+	  enable this.
+
 config VIDEO_CT69000
 	bool "Enable Chips & Technologies 69000 video driver"
 	depends on VIDEO