fbdev: matroxfb: add missing MODULE_DESCRIPTION() macros

With ARCH=x86, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/video/fbdev/matrox/matroxfb_accel.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/video/fbdev/matrox/matroxfb_DAC1064.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/video/fbdev/matrox/matroxfb_Ti3026.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson <[e-mail]>
Signed-off-by: Helge Deller <[e-mail]>

drivers/video/fbdev/matrox/matroxfb_DAC1064.c

···
 EXPORT_SYMBOL(DAC1064_global_init);
 EXPORT_SYMBOL(DAC1064_global_restore);
 #endif
+MODULE_DESCRIPTION("Matrox Mystique/G100 output driver");
 MODULE_LICENSE("GPL");

drivers/video/fbdev/matrox/matroxfb_Ti3026.c

···
 };
 EXPORT_SYMBOL(matrox_millennium);
 #endif
+MODULE_DESCRIPTION("Matrox Millennium output driver");
 MODULE_LICENSE("GPL");

drivers/video/fbdev/matrox/matroxfb_accel.c

···
 	}
 }
 
+MODULE_DESCRIPTION("Accelerated fbops for Matrox Millennium/Mystique/G100/G200/G400/G450/G550");
 MODULE_LICENSE("GPL");