dca: add missing MODULE_DESCRIPTION() macro

With ARCH=x86, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/dca/dca.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/20240615-dca-md-v2-1-c4062275a3f1@quicinc.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/dca/dca-core.c

@@ -17,6 +17,7 @@
 #define DCA_VERSION "1.12.1"
 
 MODULE_VERSION(DCA_VERSION);
+MODULE_DESCRIPTION("Intel Direct Cache Access (DCA) service module");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Intel Corporation");