rpmsg: char: add missing MODULE_DESCRIPTION() macro

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/rpmsg/rpmsg_char.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mathieu Poirier <[email protected]>

Author: Jeff Johnson

drivers/rpmsg/rpmsg_char.c

@@ -566,4 +566,5 @@ static void rpmsg_chrdev_exit(void)
 module_exit(rpmsg_chrdev_exit);
 
 MODULE_ALIAS("rpmsg:rpmsg_chrdev");
+MODULE_DESCRIPTION("RPMSG device interface");
 MODULE_LICENSE("GPL v2");