lib/zlib: add missing MODULE_DESCRIPTION() macro

With ARCH=csky, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/zlib_deflate/zlib_deflate.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Jeff Johnson <[email protected]>
Cc: Guo Ren <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

lib/zlib_deflate/deflate_syms.c

@@ -17,4 +17,5 @@ EXPORT_SYMBOL(zlib_deflate);
 EXPORT_SYMBOL(zlib_deflateInit2);
 EXPORT_SYMBOL(zlib_deflateEnd);
 EXPORT_SYMBOL(zlib_deflateReset);
+MODULE_DESCRIPTION("Data compression using the deflation algorithm");
 MODULE_LICENSE("GPL");