Fix record layer "make clean"
Fix record layer "make clean"

The "clean" target in libssl has been updated to handle the new record
layer sub-directory.

Reviewed-by: Richard Levitte <5fb523282dd7956571c80524edc2dccfa0bd8234@openssl.org>

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl