Drivers: Staging: CSR: fixed coding style errors in csr_wifi_router_free_upstream_contents.c

Originally there were a lot of coding style errors so, I cleaned up the
coding style errors including braces and indentations.

Signed-off-by: Sangho Yi <antiroot@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>