counter: ftm-quaddec: add missing MODULE_DESCRIPTION() macro

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/counter/ftm-quaddec.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20240602-md-ftm-quaddec-v1-1-1bbdf705ad31@quicinc.comSigned-off-by: William Breathitt Gray <wbg@kernel.org>

drivers/counter/ftm-quaddec.c

@@ -322,6 +322,7 @@ static struct platform_driver ftm_quaddec_driver = {
 
 module_platform_driver(ftm_quaddec_driver);
 
+MODULE_DESCRIPTION("Flex Timer Module Quadrature decoder");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Kjeld Flarup <kfa@deif.com>");
 MODULE_AUTHOR("Patrick Havelange <patrick.havelange@essensium.com>");