The rtlwifi will is deployed onto /lib/firmware so we don't need to
duplicate it inside of rtlwifi subdir.
(From OE-Core rev: 63efc03b4b77f5a0c79e57427874d40fa769d388)
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>