openpromfs: add missing MODULE_DESCRIPTION() macro

With ARCH=sparc, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in fs/openpromfs/openpromfs.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/20240619-md-sparc-fs-openpromfs-v1-1-51c85ce90fa3@quicinc.com


Signed-off-by: Christian Brauner <brauner@kernel.org>

fs/openpromfs/inode.c

@@ -471,4 +471,5 @@ static void __exit exit_openprom_fs(void)
 
 module_init(init_openprom_fs)
 module_exit(exit_openprom_fs)
+MODULE_DESCRIPTION("OpenPROM filesystem support");
 MODULE_LICENSE("GPL");