New entries written to a configuration file should be on separate lines,
ensure this is the case by appending a newline to each written variable.
(Bitbake rev: bac689fc34ea55c062d60ef249b79faa35f546a1)
Signed-off-by: Joshua Lock <josh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>