fbdev: goldfishfb: add missing MODULE_DESCRIPTION() macro

With ARCH=arm64, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/video/fbdev/goldfishfb.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Helge Deller <deller@gmx.de>

drivers/video/fbdev/goldfishfb.c

@@ -321,4 +321,5 @@ static struct platform_driver goldfish_fb_driver = {
 
 module_platform_driver(goldfish_fb_driver);
 
+MODULE_DESCRIPTION("Goldfish Virtual Platform Framebuffer driver");
 MODULE_LICENSE("GPL v2");