char: add missing NetWinder MODULE_DESCRIPTION() macros

Since commit 1fffe7a34c89 ("script: modpost: emit a warning when the
description is missing"), a module without a MODULE_DESCRIPTION() will
result in a warning with make W=1. The following warnings are being
observed in drivers/char when CONFIG_ARCH_NETWINDER is enabled:

WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/char/ds1620.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/char/nwbutton.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/char/nwflash.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/char/ds1620.c

···
 module_init(ds1620_init);
 module_exit(ds1620_exit);
 
+MODULE_DESCRIPTION("Dallas Semiconductor DS1620 thermometer driver");
 MODULE_LICENSE("GPL");

drivers/char/nwbutton.c

···
 
 
 MODULE_AUTHOR("Alex Holden");
+MODULE_DESCRIPTION("NetWinder button driver");
 MODULE_LICENSE("GPL");
 
 module_init(nwbutton_init);

drivers/char/nwflash.c

···
 	iounmap((void *)FLASH_BASE);
 }
 
+MODULE_DESCRIPTION("NetWinder flash memory driver");
 MODULE_LICENSE("GPL");
 
 module_param(flashdebug, bool, 0644);