rtc: add missing MODULE_DESCRIPTION() macro

On x86, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/rtc/lib_test.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/rtc/rtc-goldfish.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/rtc/rtc-omap.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/rtc/rtc-rc5t583.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/rtc/rtc-tps65910.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/rtc/rtc-twl.o

Add the missing invocation of the MODULE_DESCRIPTION() macro to all
files which have a MODULE_LICENSE(). This includes rtc-mpc5121.c,
which does not produce a warning with the x86 allmodconfig since it is
not built for x86, but it may cause this warning with Freescale PPC
configurations.

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

drivers/rtc/lib_test.c

···
 
 kunit_test_suite(rtc_lib_test_suite);
 
+MODULE_DESCRIPTION("KUnit test for RTC lib functions");
 MODULE_LICENSE("GPL");

drivers/rtc/rtc-goldfish.c

···
 
 module_platform_driver(goldfish_rtc);
 
+MODULE_DESCRIPTION("Android Goldfish Real Time Clock driver");
 MODULE_LICENSE("GPL v2");

drivers/rtc/rtc-mpc5121.c

···
 
 module_platform_driver(mpc5121_rtc_driver);
 
+MODULE_DESCRIPTION("Freescale MPC5121 built-in RTC driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("John Rigby <[e-mail]>");

drivers/rtc/rtc-omap.c

···
 module_platform_driver(omap_rtc_driver);
 
 MODULE_AUTHOR("George G. Davis (and others)");
+MODULE_DESCRIPTION("TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx RTC driver");
 MODULE_LICENSE("GPL");

drivers/rtc/rtc-rc5t583.c

···
 module_platform_driver(rc5t583_rtc_driver);
 MODULE_ALIAS("platform:rtc-rc5t583");
 MODULE_AUTHOR("Venu Byravarasu <[e-mail]>");
+MODULE_DESCRIPTION("RICOH 5T583 RTC driver");
 MODULE_LICENSE("GPL v2");

drivers/rtc/rtc-tps65910.c

···
 module_platform_driver(tps65910_rtc_driver);
 MODULE_ALIAS("platform:tps65910-rtc");
 MODULE_AUTHOR("Venu Byravarasu <[e-mail]>");
+MODULE_DESCRIPTION("TI TPS65910 RTC driver");
 MODULE_LICENSE("GPL");

drivers/rtc/rtc-twl.c

···
 module_platform_driver(twl4030rtc_driver);
 
 MODULE_AUTHOR("Texas Instruments, MontaVista Software");
+MODULE_DESCRIPTION("TI TWL4030/TWL5030/TWL6030/TPS659x0 RTC driver");
 MODULE_LICENSE("GPL");