ASN.1: add module description

This is needed to avoid a build warning:

WARNING: modpost: missing MODULE_DESCRIPTION() in lib/asn1_decoder.o

Link: https://lkml.kernel.org/r/[email protected]
Fixes: 6c6c1fc ("modpost: require a MODULE_DESCRIPTION()")
Signed-off-by: Arnd Bergmann <[email protected]>
Tested-by: Geert Uytterhoeven <[email protected]>
Cc: Jeff Johnson <[email protected]>
Cc: Masahiro Yamada <[email protected]>
Cc: Stehen Rothwell <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

Author: arndb

lib/asn1_decoder.c

@@ -518,4 +518,5 @@ int asn1_ber_decoder(const struct asn1_decoder *decoder,
 }
 EXPORT_SYMBOL_GPL(asn1_ber_decoder);
 
+MODULE_DESCRIPTION("Decoder for ASN.1 BER/DER/CER encoded bytestream");
 MODULE_LICENSE("GPL");