watchdog: add missing MODULE_DESCRIPTION() macros

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/watchdog/omap_wdt.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/watchdog/twl4030_wdt.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/watchdog/ts4800_wdt.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/watchdog/simatic-ipc-wdt.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/watchdog/menz69_wdt.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson <[e-mail]>
Reviewed-by: Guenter Roeck <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Guenter Roeck <[e-mail]>
Signed-off-by: Wim Van Sebroeck <[e-mail]>

drivers/watchdog/menz69_wdt.c

···
 module_mcb_driver(men_z069_driver);
 
 MODULE_AUTHOR("Johannes Thumshirn <[e-mail]>");
+MODULE_DESCRIPTION("Watchdog driver for the MEN z069 IP-Core");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("mcb:16z069");
 MODULE_IMPORT_NS(MCB);

drivers/watchdog/omap_wdt.c

···
 module_platform_driver(omap_wdt_driver);
 
 MODULE_AUTHOR("George G. Davis");
+MODULE_DESCRIPTION("Driver for the TI OMAP 16xx/24xx/34xx 32KHz (non-secure) watchdog");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:omap_wdt");

drivers/watchdog/simatic-ipc-wdt.c

···
 
 module_platform_driver(simatic_ipc_wdt_driver);
 
+MODULE_DESCRIPTION("Siemens SIMATIC IPC driver for Watchdogs");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:" KBUILD_MODNAME);
 MODULE_AUTHOR("Gerd Haeussler <[e-mail]>");

drivers/watchdog/ts4800_wdt.c

···
 module_platform_driver(ts4800_wdt_driver);
 
 MODULE_AUTHOR("Damien Riegel <[e-mail]>");
+MODULE_DESCRIPTION("Watchdog driver for TS-4800 based boards");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:ts4800_wdt");

drivers/watchdog/twl4030_wdt.c

···
 module_platform_driver(twl4030_wdt_driver);
 
 MODULE_AUTHOR("Nokia Corporation");
+MODULE_DESCRIPTION("TWL4030 Watchdog");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:twl4030_wdt");